diff --git a/tsconfig.json b/tsconfig.json
index bc04436e..d971478a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -21,7 +21,7 @@
     "noUnusedLocals": true,
     "module": "commonjs",
     "sourceMap": true,
-    "target": "es5",
+    "target": "es2015",
     "resolveJsonModule": true,
     "strictNullChecks": true
   }