diff --git a/tsconfig.json b/tsconfig.json
index e7ff90f..8e8b6b2 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,6 +11,7 @@
     "resolveJsonModule": true,
     "isolatedModules": true,
     "jsx": "preserve",
+    "downlevelIteration": true,
     "incremental": true,
     "plugins": [
       {