diff --git a/tsconfig.json b/tsconfig.json
index 27f27d67..02035895 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -15,6 +15,7 @@
         "preserveConstEnums": true,
         "removeComments": false,
         "sourceMap": true,
+        "strictNullChecks": true,
         "suppressImplicitAnyIndexErrors": false,
         "target": "ES2015"
     },