diff --git a/tsconfig.json b/tsconfig.json
index f8cc33d63a..40f34f5992 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -9,7 +9,7 @@
     "noUnusedLocals": true,
     "noImplicitAny": true,
     "target": "es6",
-    "lib": ["dom", "es7"]
+    "lib": ["dom", "es2017"]
   },
   "exclude": ["node_modules", "lib", "es"]
 }