diff --git a/tsconfig.json b/tsconfig.json
index 654f17d..3110487 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,7 +3,7 @@
     "module": "commonjs",
     "moduleResolution": "node",
     "target": "es5",
-    "lib": ["esnext", "dom"],
+    "lib": ["es2015", "dom"],
     "outDir": "dist/cjs",
     "jsx": "react",
     "esModuleInterop": true,