diff --git a/tsconfig.json b/tsconfig.json
index dd3659e..b16d80e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "target": "es5",
-    "lib": ["ES5"],
+    "lib": ["ES2015"],
     "module": "commonjs",
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,