diff --git a/src/tsconfig.json b/src/tsconfig.json
index 033f601ce4..0acc81470a 100644
--- a/src/tsconfig.json
+++ b/src/tsconfig.json
@@ -7,7 +7,10 @@
     "sourceMap": true,
     "skipLibCheck": true,
     "target": "esnext",
-    "strict": true
+    "useDefineForClassFields": false,
+    "strict": true,
+    "noImplicitReturns": true,
+    "noPropertyAccessFromIndexSignature": true
   },
   "include": [
     "./**/*.ts"