diff --git a/tsconfig.json b/tsconfig.json
index 9d33d58..f390e9a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -27,6 +27,7 @@
     "strictBindCallApply": true,
     "strictPropertyInitialization": true,
     "noImplicitThis": true,
+    "noImplicitReturns": true,
     "alwaysStrict": true,
     "exactOptionalPropertyTypes": true,
     "noUncheckedIndexedAccess": true,