diff --git a/tsconfig.json b/tsconfig.json
index 387d9840c..2d761eef0 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -9,7 +9,7 @@
     "strictPropertyInitialization": false,
     "noImplicitAny": true,
     "noImplicitThis": true,
-    "useUnknownInCatchVariables": false,
+    "useUnknownInCatchVariables": true,
     "module": "es6",
     "target": "es5",
     "jsx": "react",