diff --git a/tsconfig.json b/tsconfig.json
index 43d48c7456..069b861389 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -9,7 +9,7 @@
     "moduleResolution": "node",
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
-    "target": "es6",
+    "target": "es5",
     "typeRoots": [
       "node_modules/@types"
     ],