diff --git a/tsconfig.spec.json b/tsconfig.spec.json
index c593d918..db1da5fc 100644
--- a/tsconfig.spec.json
+++ b/tsconfig.spec.json
@@ -8,7 +8,7 @@
     "resolveJsonModule": true,
     "skipLibCheck": true,
     "sourceMap": true,
-    "strict": false,
+    "strict": true,
     "allowArbitraryExtensions": true,
     "baseUrl": ".",
     "types": ["vitest/globals", "node"]