diff --git a/lib/tsconfig.json b/lib/tsconfig.json
index 5e451a81..9ac1b76f 100644
--- a/lib/tsconfig.json
+++ b/lib/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "strict": false,
+    "strict": true,
     "strictNullChecks": false,
     "noUnusedLocals": true,
     "noUnusedParameters": true,