diff --git a/package-lock.json b/package-lock.json
index 6ac1b71..81dc556 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
         "tweetnacl": "^1.0.3",
         "typescript": "^5.9.2",
         "vitest": "^3.2.4",
-        "zod": "^4.0.17"
+        "zod": "^4.1.3"
       }
     },
     "node_modules/@alloc/quick-lru": {
@@ -4747,9 +4747,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "4.0.17",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-4.0.17.tgz",
-      "integrity": "sha512-1PHjlYRevNxxdy2JZ8JcNAw7rX8V9P1AKkP+x/xZfxB0K5FYfuV+Ug6P/6NVSR2jHQ+FzDDoDHS04nYUsOIyLQ==",
+      "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"
diff --git a/package.json b/package.json
index 4ba315f..2627004 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,6 @@
     "tweetnacl": "^1.0.3",
     "typescript": "^5.9.2",
     "vitest": "^3.2.4",
-    "zod": "^4.0.17"
+    "zod": "^4.1.3"
   }
 }