diff --git a/tsconfig.json b/tsconfig.json
index f2d73dee..216a2cc0 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "allowJs": false,
+    "downlevelIteration": "true",
     "baseUrl": "./",
     "declaration": false,
     "emitDecoratorMetadata": true,