diff --git a/core/cli/package.json b/core/cli/package.json
index b09a69e1e..5f6ce1711 100644
--- a/core/cli/package.json
+++ b/core/cli/package.json
@@ -27,7 +27,7 @@
     "globby": "^10.0.2",
     "type-fest": "^4.41.0",
     "winston": "^3.17.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "dependencies": {
     "@dotcom-tool-kit/base": "^1.3.0",
diff --git a/core/create/package.json b/core/create/package.json
index 1d31bf8e3..dbc64c6ef 100644
--- a/core/create/package.json
+++ b/core/create/package.json
@@ -32,7 +32,7 @@
     "simple-git": "^3.27.0",
     "tslib": "^2.8.1",
     "yaml": "^2.8.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/lib/base/package.json b/lib/base/package.json
index 7af371bc3..916928e1c 100644
--- a/lib/base/package.json
+++ b/lib/base/package.json
@@ -21,9 +21,9 @@
     "@dotcom-tool-kit/plugin": "^1.1.0",
     "type-fest": "^4.41.0",
     "winston": "^3.17.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "peerDependencies": {
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   }
 }
diff --git a/lib/doppler/package.json b/lib/doppler/package.json
index aa2d630ae..1b3f346f6 100644
--- a/lib/doppler/package.json
+++ b/lib/doppler/package.json
@@ -10,7 +10,7 @@
     "@dotcom-tool-kit/error": "^4.1.1",
     "@dotcom-tool-kit/logger": "^4.2.2",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "keywords": [],
   "author": "FT.com Platforms Team <platforms-team.customer-products@ft.com>",
diff --git a/package-lock.json b/package-lock.json
index 27b0bf8f3..a806ffa65 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -78,7 +78,7 @@
         "globby": "^10.0.2",
         "type-fest": "^4.41.0",
         "winston": "^3.17.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -158,6 +158,16 @@
       "version": "18.3.1",
       "license": "MIT"
     },
+    "core/cli/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "core/create": {
       "name": "@dotcom-tool-kit/create",
       "version": "4.2.12",
@@ -184,7 +194,7 @@
         "simple-git": "^3.27.0",
         "tslib": "^2.8.1",
         "yaml": "^2.8.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "bin": {
         "create": "bin/create-tool-kit"
@@ -208,6 +218,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "core/create/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "core/sandbox": {
       "version": "1.0.0",
       "extraneous": true,
@@ -234,10 +253,20 @@
         "@dotcom-tool-kit/plugin": "^1.1.0",
         "type-fest": "^4.41.0",
         "winston": "^3.17.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "peerDependencies": {
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
+      }
+    },
+    "lib/base/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
       }
     },
     "lib/config": {
@@ -266,7 +295,7 @@
         "@dotcom-tool-kit/error": "^4.1.1",
         "@dotcom-tool-kit/logger": "^4.2.2",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "spawk": "^1.8.2",
@@ -276,6 +305,15 @@
         "node": "18.x || 20.x || 22.x"
       }
     },
+    "lib/doppler/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "lib/error": {
       "name": "@dotcom-tool-kit/error",
       "version": "4.1.1",
@@ -32315,7 +32353,10 @@
     },
     "node_modules/zod": {
       "version": "3.25.76",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
       "license": "MIT",
+      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
@@ -32372,7 +32413,7 @@
         "@dotcom-tool-kit/base": "^1.3.0",
         "@dotcom-tool-kit/error": "^4.1.1",
         "@dotcom-tool-kit/state": "^4.3.2",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32381,6 +32422,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/aws/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/babel": {
       "name": "@dotcom-tool-kit/babel",
       "version": "4.3.6",
@@ -32391,7 +32441,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "fast-glob": "^3.3.3",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@babel/preset-env": "^7.27.2",
@@ -32406,6 +32456,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/babel/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/backend-heroku-app": {
       "name": "@dotcom-tool-kit/backend-heroku-app",
       "version": "4.1.19",
@@ -32454,7 +32513,7 @@
         "lodash": "^4.17.21",
         "tslib": "^2.8.1",
         "yaml": "^2.8.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@dotcom-tool-kit/plugin": "^1.1.0",
@@ -32469,7 +32528,7 @@
       },
       "peerDependencies": {
         "dotcom-tool-kit": "4.x",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       }
     },
     "plugins/circleci-deploy": {
@@ -32506,13 +32565,22 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/circleci/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/cloudsmith": {
       "name": "@dotcom-tool-kit/cloudsmith",
       "version": "1.1.2",
       "license": "ISC",
       "dependencies": {
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x",
@@ -32522,6 +32590,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/cloudsmith/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/commitlint": {
       "name": "@dotcom-tool-kit/commitlint",
       "version": "1.2.13",
@@ -32566,7 +32643,7 @@
         "@dotcom-tool-kit/hako": "^0.1.21",
         "@dotcom-tool-kit/logger": "^4.2.2",
         "@dotcom-tool-kit/node": "^4.4.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32583,7 +32660,7 @@
         "@dotcom-tool-kit/containerised-app": "^0.3.2",
         "@dotcom-tool-kit/upload-assets-to-s3": "^4.3.7",
         "@dotcom-tool-kit/webpack": "^4.4.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32592,6 +32669,24 @@
         "dotcom-tool-kit": "^4.8.0"
       }
     },
+    "plugins/containerised-app-with-assets/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
+    "plugins/containerised-app/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/cypress": {
       "name": "@dotcom-tool-kit/cypress",
       "version": "5.3.5",
@@ -32602,7 +32697,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "@dotcom-tool-kit/package-json-hook": "^5.2.5",
         "@dotcom-tool-kit/state": "^4.3.2",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32611,6 +32706,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/cypress/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/docker": {
       "name": "@dotcom-tool-kit/docker",
       "version": "0.4.5",
@@ -32621,7 +32725,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "@dotcom-tool-kit/state": "^4.3.2",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32630,6 +32734,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/docker/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/eslint": {
       "name": "@dotcom-tool-kit/eslint",
       "version": "4.3.5",
@@ -32639,7 +32752,7 @@
         "@dotcom-tool-kit/error": "^4.1.1",
         "@dotcom-tool-kit/logger": "^4.2.2",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -32657,6 +32770,15 @@
         "eslint": "7.x || 8.x"
       }
     },
+    "plugins/eslint/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/frontend-app": {
       "name": "@dotcom-tool-kit/frontend-app",
       "version": "4.1.19",
@@ -32683,7 +32805,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "@dotcom-tool-kit/state": "^4.3.2",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32692,6 +32814,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/hako/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/heroku": {
       "name": "@dotcom-tool-kit/heroku",
       "version": "4.2.7",
@@ -32710,7 +32841,7 @@
         "heroku-client": "^3.1.0",
         "p-retry": "^4.5.0",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@types/financial-times__package-json": "^1.9.0",
@@ -32724,6 +32855,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/heroku/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/husky-npm": {
       "name": "@dotcom-tool-kit/husky-npm",
       "version": "5.1.13",
@@ -32748,7 +32888,7 @@
         "@dotcom-tool-kit/base": "^1.3.0",
         "@dotcom-tool-kit/logger": "^4.2.2",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "winston": "^3.17.0"
@@ -32761,6 +32901,15 @@
         "jest-cli": "27.x || 28.x || 29.x"
       }
     },
+    "plugins/jest/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/lint-staged": {
       "name": "@dotcom-tool-kit/lint-staged",
       "version": "5.2.13",
@@ -32788,7 +32937,7 @@
         "@dotcom-tool-kit/lint-staged": "^5.2.13",
         "@dotcom-tool-kit/package-json-hook": "^5.2.5",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32797,6 +32946,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/lint-staged-npm/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/lint-staged/node_modules/colorette": {
       "version": "1.4.0",
       "license": "MIT"
@@ -32857,7 +33015,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "glob": "^10.4.5",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -32873,6 +33031,15 @@
         "mocha": ">=6.x <=11.x"
       }
     },
+    "plugins/mocha/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/monorepo": {
       "name": "@dotcom-tool-kit/monorepo",
       "version": "0.1.6",
@@ -32883,7 +33050,7 @@
         "@npmcli/map-workspaces": "^4.0.2",
         "minimatch": "^10.0.3",
         "pluralize": "^8.0.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@dotcom-tool-kit/config": "^1.1.1",
@@ -32899,6 +33066,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/monorepo/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/n-test": {
       "name": "@dotcom-tool-kit/n-test",
       "version": "4.4.0",
@@ -32910,7 +33086,7 @@
         "@dotcom-tool-kit/state": "^4.3.2",
         "@financial-times/n-test": "^8.1.0",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -32924,6 +33100,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/n-test/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/next-router": {
       "name": "@dotcom-tool-kit/next-router",
       "version": "4.3.6",
@@ -32936,7 +33121,7 @@
         "@dotcom-tool-kit/state": "^4.3.2",
         "ft-next-router": "^4.0.3",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32945,6 +33130,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/next-router/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/node": {
       "name": "@dotcom-tool-kit/node",
       "version": "4.4.0",
@@ -32957,7 +33151,7 @@
         "get-port": "^5.1.1",
         "tslib": "^2.8.1",
         "wait-port": "^1.1.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -32976,7 +33170,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "glob": "^10.4.5",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@types/node": "^20.17.28"
@@ -33063,6 +33257,24 @@
       "dev": true,
       "license": "MIT"
     },
+    "plugins/node-test/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
+    "plugins/node/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/nodemon": {
       "name": "@dotcom-tool-kit/nodemon",
       "version": "4.2.5",
@@ -33074,7 +33286,7 @@
         "@dotcom-tool-kit/state": "^4.3.2",
         "get-port": "^5.1.1",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@types/nodemon": "^1.19.6"
@@ -33087,6 +33299,15 @@
         "nodemon": "2.x"
       }
     },
+    "plugins/nodemon/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/npm": {
       "name": "@dotcom-tool-kit/npm",
       "version": "4.2.17",
@@ -33304,7 +33525,7 @@
         "@financial-times/package-json": "^4.0.0",
         "lodash": "^4.17.21",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -33315,7 +33536,16 @@
         "node": "18.x || 20.x || 22.x"
       },
       "peerDependencies": {
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
+      }
+    },
+    "plugins/package-json-hook/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
       }
     },
     "plugins/parallel": {
@@ -33324,7 +33554,7 @@
       "license": "ISC",
       "dependencies": {
         "@dotcom-tool-kit/base": "^1.3.0",
-        "zod": "^3.25.67"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "20.x || 22.x"
@@ -33333,6 +33563,15 @@
         "dotcom-tool-kit": "^4.10.0"
       }
     },
+    "plugins/parallel/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/prettier": {
       "name": "@dotcom-tool-kit/prettier",
       "version": "4.3.6",
@@ -33345,7 +33584,7 @@
         "fast-glob": "^3.3.3",
         "prettier": "^2.2.1",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@types/prettier": "^2.7.3",
@@ -33363,6 +33602,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "plugins/prettier/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/serverless": {
       "name": "@dotcom-tool-kit/serverless",
       "version": "3.5.0",
@@ -33376,7 +33624,7 @@
         "get-port": "^5.1.1",
         "tslib": "^2.8.1",
         "wait-port": "^1.1.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "engines": {
         "node": "18.x || 20.x || 22.x"
@@ -33386,6 +33634,15 @@
         "serverless-offline": "12.x || 13.x"
       }
     },
+    "plugins/serverless/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/typescript": {
       "name": "@dotcom-tool-kit/typescript",
       "version": "3.3.5",
@@ -33393,7 +33650,7 @@
       "dependencies": {
         "@dotcom-tool-kit/base": "^1.3.0",
         "@dotcom-tool-kit/logger": "^4.2.2",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -33408,6 +33665,15 @@
         "typescript": "3.x || 4.x || 5.x"
       }
     },
+    "plugins/typescript/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/upload-assets-to-s3": {
       "name": "@dotcom-tool-kit/upload-assets-to-s3",
       "version": "4.3.7",
@@ -33420,7 +33686,7 @@
         "glob": "^10.4.5",
         "mime": "^3.0.0",
         "tslib": "^2.8.1",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -33436,6 +33702,15 @@
         "dotcom-tool-kit": "4.x"
       }
     },
+    "plugins/upload-assets-to-s3/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "plugins/webpack": {
       "name": "@dotcom-tool-kit/webpack",
       "version": "4.4.0",
@@ -33446,7 +33721,7 @@
         "@dotcom-tool-kit/logger": "^4.2.2",
         "tslib": "^2.8.1",
         "webpack-cli": "^4.6.0",
-        "zod": "^3.24.4"
+        "zod": "^4.1.3"
       },
       "devDependencies": {
         "@jest/globals": "^29.7.0",
@@ -33461,6 +33736,15 @@
         "webpack": "4.x.x || 5.x.x"
       }
     },
+    "plugins/webpack/node_modules/zod": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.3.tgz",
+      "integrity": "sha512-1neef4bMce1hNTrxvHVKxWjKfGDn0oAli3Wy1Uwb7TRO1+wEwoZUZNP1NXIEESybOBiFnBOhI6a4m6tCLE8dog==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "types/financial-times__package-json": {
       "name": "@types/financial-times__package-json",
       "version": "1.9.0",
diff --git a/plugins/aws/package.json b/plugins/aws/package.json
index 1699088c3..a37c11c2f 100644
--- a/plugins/aws/package.json
+++ b/plugins/aws/package.json
@@ -31,6 +31,6 @@
     "@dotcom-tool-kit/base": "^1.3.0",
     "@dotcom-tool-kit/error": "^4.1.1",
     "@dotcom-tool-kit/state": "^4.3.2",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   }
 }
diff --git a/plugins/babel/package.json b/plugins/babel/package.json
index f95f14736..29d1e499d 100644
--- a/plugins/babel/package.json
+++ b/plugins/babel/package.json
@@ -21,7 +21,7 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "fast-glob": "^3.3.3",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "files": [
     "/lib",
diff --git a/plugins/circleci/package.json b/plugins/circleci/package.json
index 73ddd61d3..16e72edee 100644
--- a/plugins/circleci/package.json
+++ b/plugins/circleci/package.json
@@ -16,7 +16,7 @@
     "lodash": "^4.17.21",
     "tslib": "^2.8.1",
     "yaml": "^2.8.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "keywords": [],
   "author": "FT.com Platforms Team <platforms-team.customer-products@ft.com>",
@@ -45,7 +45,7 @@
   },
   "peerDependencies": {
     "dotcom-tool-kit": "4.x",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "engines": {
     "node": "18.x || 20.x || 22.x"
diff --git a/plugins/cloudsmith/package.json b/plugins/cloudsmith/package.json
index aef7a9ff8..5dd1f2303 100644
--- a/plugins/cloudsmith/package.json
+++ b/plugins/cloudsmith/package.json
@@ -29,6 +29,6 @@
   },
   "dependencies": {
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   }
 }
diff --git a/plugins/containerised-app-with-assets/package.json b/plugins/containerised-app-with-assets/package.json
index 09a12b4e0..bdc8235de 100644
--- a/plugins/containerised-app-with-assets/package.json
+++ b/plugins/containerised-app-with-assets/package.json
@@ -28,6 +28,6 @@
     "@dotcom-tool-kit/containerised-app": "^0.3.2",
     "@dotcom-tool-kit/upload-assets-to-s3": "^4.3.7",
     "@dotcom-tool-kit/webpack": "^4.4.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   }
 }
diff --git a/plugins/containerised-app/package.json b/plugins/containerised-app/package.json
index 71d3eaa18..aaa4c764d 100644
--- a/plugins/containerised-app/package.json
+++ b/plugins/containerised-app/package.json
@@ -34,6 +34,6 @@
     "@dotcom-tool-kit/hako": "^0.1.21",
     "@dotcom-tool-kit/logger": "^4.2.2",
     "@dotcom-tool-kit/node": "^4.4.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   }
 }
diff --git a/plugins/cypress/package.json b/plugins/cypress/package.json
index 430b84c5a..3f45b450a 100644
--- a/plugins/cypress/package.json
+++ b/plugins/cypress/package.json
@@ -32,6 +32,6 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "@dotcom-tool-kit/package-json-hook": "^5.2.5",
     "@dotcom-tool-kit/state": "^4.3.2",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   }
 }
diff --git a/plugins/docker/package.json b/plugins/docker/package.json
index 76e840ad4..ea95f8332 100644
--- a/plugins/docker/package.json
+++ b/plugins/docker/package.json
@@ -15,7 +15,7 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "@dotcom-tool-kit/state": "^4.3.2",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/eslint/package.json b/plugins/eslint/package.json
index bfa6a7a04..151405cf8 100644
--- a/plugins/eslint/package.json
+++ b/plugins/eslint/package.json
@@ -14,7 +14,7 @@
     "@dotcom-tool-kit/error": "^4.1.1",
     "@dotcom-tool-kit/logger": "^4.2.2",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/hako/package.json b/plugins/hako/package.json
index 44df56b5a..ce3624fac 100644
--- a/plugins/hako/package.json
+++ b/plugins/hako/package.json
@@ -14,7 +14,7 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "@dotcom-tool-kit/state": "^4.3.2",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "description": "",
   "repository": {
diff --git a/plugins/heroku/package.json b/plugins/heroku/package.json
index ef58411c5..a5432bb85 100644
--- a/plugins/heroku/package.json
+++ b/plugins/heroku/package.json
@@ -23,7 +23,7 @@
     "heroku-client": "^3.1.0",
     "p-retry": "^4.5.0",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/jest/package.json b/plugins/jest/package.json
index 8c84d7948..9d713793e 100644
--- a/plugins/jest/package.json
+++ b/plugins/jest/package.json
@@ -13,7 +13,7 @@
     "@dotcom-tool-kit/base": "^1.3.0",
     "@dotcom-tool-kit/logger": "^4.2.2",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "peerDependencies": {
     "dotcom-tool-kit": "4.x",
diff --git a/plugins/lint-staged-npm/package.json b/plugins/lint-staged-npm/package.json
index 846099c96..ea80bff74 100644
--- a/plugins/lint-staged-npm/package.json
+++ b/plugins/lint-staged-npm/package.json
@@ -14,7 +14,7 @@
     "@dotcom-tool-kit/lint-staged": "^5.2.13",
     "@dotcom-tool-kit/package-json-hook": "^5.2.5",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/mocha/package.json b/plugins/mocha/package.json
index 86e6f5cc2..914c1970e 100644
--- a/plugins/mocha/package.json
+++ b/plugins/mocha/package.json
@@ -15,7 +15,7 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "glob": "^10.4.5",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/monorepo/package.json b/plugins/monorepo/package.json
index a63886171..21c7cdfc2 100644
--- a/plugins/monorepo/package.json
+++ b/plugins/monorepo/package.json
@@ -36,7 +36,7 @@
     "@npmcli/map-workspaces": "^4.0.2",
     "minimatch": "^10.0.3",
     "pluralize": "^8.0.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "devDependencies": {
     "@dotcom-tool-kit/config": "^1.1.1",
diff --git a/plugins/n-test/package.json b/plugins/n-test/package.json
index b75d8915d..ef4a3db0c 100644
--- a/plugins/n-test/package.json
+++ b/plugins/n-test/package.json
@@ -16,7 +16,7 @@
     "@dotcom-tool-kit/state": "^4.3.2",
     "@financial-times/n-test": "^8.1.0",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/next-router/package.json b/plugins/next-router/package.json
index 38a805fe2..bacc3670d 100644
--- a/plugins/next-router/package.json
+++ b/plugins/next-router/package.json
@@ -17,7 +17,7 @@
     "@dotcom-tool-kit/state": "^4.3.2",
     "ft-next-router": "^4.0.3",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/node-test/package.json b/plugins/node-test/package.json
index cab7d82cf..6fd8671a4 100644
--- a/plugins/node-test/package.json
+++ b/plugins/node-test/package.json
@@ -35,7 +35,7 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "glob": "^10.4.5",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "devDependencies": {
     "@types/node": "^20.17.28"
diff --git a/plugins/node/package.json b/plugins/node/package.json
index d77736461..f3e4a9c55 100644
--- a/plugins/node/package.json
+++ b/plugins/node/package.json
@@ -17,7 +17,7 @@
     "get-port": "^5.1.1",
     "tslib": "^2.8.1",
     "wait-port": "^1.1.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/nodemon/package.json b/plugins/nodemon/package.json
index 1e78c3a4e..7c6e91173 100644
--- a/plugins/nodemon/package.json
+++ b/plugins/nodemon/package.json
@@ -16,7 +16,7 @@
     "@dotcom-tool-kit/state": "^4.3.2",
     "get-port": "^5.1.1",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "peerDependencies": {
     "dotcom-tool-kit": "4.x",
diff --git a/plugins/package-json-hook/package.json b/plugins/package-json-hook/package.json
index 610ad41ee..2a141658c 100644
--- a/plugins/package-json-hook/package.json
+++ b/plugins/package-json-hook/package.json
@@ -16,7 +16,7 @@
     "@financial-times/package-json": "^4.0.0",
     "lodash": "^4.17.21",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
@@ -26,7 +26,7 @@
   "bugs": "https://github.com/financial-times/dotcom-tool-kit/issues",
   "homepage": "https://github.com/financial-times/dotcom-tool-kit/tree/main/plugins/package-json-hook",
   "peerDependencies": {
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "devDependencies": {
     "@jest/globals": "^29.7.0",
diff --git a/plugins/parallel/package.json b/plugins/parallel/package.json
index 8232a9cfb..b482536cd 100644
--- a/plugins/parallel/package.json
+++ b/plugins/parallel/package.json
@@ -31,6 +31,6 @@
   },
   "dependencies": {
     "@dotcom-tool-kit/base": "^1.3.0",
-    "zod": "^3.25.67"
+    "zod": "^4.1.3"
   }
 }
diff --git a/plugins/prettier/package.json b/plugins/prettier/package.json
index d15740a1b..31f96db85 100644
--- a/plugins/prettier/package.json
+++ b/plugins/prettier/package.json
@@ -17,7 +17,7 @@
     "fast-glob": "^3.3.3",
     "prettier": "^2.2.1",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/serverless/package.json b/plugins/serverless/package.json
index 4c914bded..2232fd139 100644
--- a/plugins/serverless/package.json
+++ b/plugins/serverless/package.json
@@ -33,7 +33,7 @@
     "get-port": "^5.1.1",
     "tslib": "^2.8.1",
     "wait-port": "^1.1.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "engines": {
     "node": "18.x || 20.x || 22.x"
diff --git a/plugins/typescript/package.json b/plugins/typescript/package.json
index 3266e1297..e0e18a171 100644
--- a/plugins/typescript/package.json
+++ b/plugins/typescript/package.json
@@ -27,7 +27,7 @@
   "dependencies": {
     "@dotcom-tool-kit/base": "^1.3.0",
     "@dotcom-tool-kit/logger": "^4.2.2",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "devDependencies": {
     "@jest/globals": "^29.7.0",
diff --git a/plugins/upload-assets-to-s3/package.json b/plugins/upload-assets-to-s3/package.json
index 096b4d670..624a383f6 100644
--- a/plugins/upload-assets-to-s3/package.json
+++ b/plugins/upload-assets-to-s3/package.json
@@ -17,7 +17,7 @@
     "glob": "^10.4.5",
     "mime": "^3.0.0",
     "tslib": "^2.8.1",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "repository": {
     "type": "git",
diff --git a/plugins/webpack/package.json b/plugins/webpack/package.json
index e48cae7ae..3107a0e09 100644
--- a/plugins/webpack/package.json
+++ b/plugins/webpack/package.json
@@ -22,7 +22,7 @@
     "@dotcom-tool-kit/logger": "^4.2.2",
     "tslib": "^2.8.1",
     "webpack-cli": "^4.6.0",
-    "zod": "^3.24.4"
+    "zod": "^4.1.3"
   },
   "peerDependencies": {
     "dotcom-tool-kit": "4.x",