diff --git a/tsconfig.json b/tsconfig.json
index 93a6e4e..0e0d634 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "outDir": "dist",
+    "strict": true,
     "noImplicitAny": true,
     "strictNullChecks": true,
     "declaration": true,