diff --git a/tsconfig.json b/tsconfig.json
index 425b264e7..2b52abc82 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "target": "es2017",
-    "allowJs": true,
+    "allowJs": false,
     "moduleResolution": "node",
     "allowSyntheticDefaultImports": true,
     "noImplicitAny": true,