diff --git a/packages/engine/package.json b/packages/engine/package.json
index f12d1cc..0a22f7a 100644
--- a/packages/engine/package.json
+++ b/packages/engine/package.json
@@ -27,7 +27,7 @@
   },
   "devDependencies": {
     "typescript": "^5.7.3",
-    "vitest": "^3.0.0"
+    "vitest": "^4.1.0"
   },
   "files": ["dist", "src"],
   "types": "./dist/index.d.ts",
diff --git a/packages/lunchtable-tcg-guilds/package.json b/packages/lunchtable-tcg-guilds/package.json
index 6ce3332..e5ecc12 100644
--- a/packages/lunchtable-tcg-guilds/package.json
+++ b/packages/lunchtable-tcg-guilds/package.json
@@ -37,7 +37,7 @@
     "convex": "^1.31.6",
     "convex-test": "^0.0.38",
     "typescript": "^5.7.3",
-    "vitest": "^3.2.4"
+    "vitest": "^4.1.0"
   },
   "files": ["dist", "src"],
   "types": "./dist/client/index.d.ts",