diff --git a/tsconfig.json b/tsconfig.json
index bc9b695..f0a5c85 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,7 +3,7 @@
     "baseUrl": ".",
     "outDir": "dist",
     "sourceMap": false,
-    "target": "esnext",
+    "target": "ES2015",
     "module": "es6",
     "moduleResolution": "node",
     "resolveJsonModule": true,