diff --git a/package.json b/package.json
index f37d316..34df621 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@angular/platform-browser": "^5.2.0",
     "@angular/platform-browser-dynamic": "^5.2.0",
     "@angular/router": "^6.0.1",
-    "core-js": "^2.4.1",
+    "core-js": "^3.1.4",
     "rxjs": "^5.5.6",
     "zone.js": "^0.8.19"
   },