diff --git a/tsconfig.json b/tsconfig.json
index 606c5fd3c..c505d5231 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,14 +6,14 @@
     "lib": ["ES2020", "DOM", "DOM.Iterable"],
     "skipLibCheck": true,
     "allowSyntheticDefaultImports": true,
-
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
     "resolveJsonModule": true,
+    "strictNullChecks": true,
     "isolatedModules": true,
     "noEmit": true,
     "noImplicitAny": true,
-
+    "sourceMap": true,
     "strict": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,