diff --git a/src/polyfills.ts b/src/polyfills.ts
index 318867ebf3..aba88329e0 100644
--- a/src/polyfills.ts
+++ b/src/polyfills.ts
@@ -3,6 +3,7 @@ import 'core-js/fn/array/find';
 import 'core-js/fn/object/assign';
 import 'core-js/fn/string/ends-with';
 import 'core-js/fn/string/starts-with';
+import 'core-js/fn/object/assign';
 
 import 'core-js/es6/map';
 import 'core-js/es6/symbol';