diff --git a/packages/ecmascript-runtime-client/package.js b/packages/ecmascript-runtime-client/package.js
index 0d301514e8..d6f184afcb 100644
--- a/packages/ecmascript-runtime-client/package.js
+++ b/packages/ecmascript-runtime-client/package.js
@@ -7,7 +7,7 @@ Package.describe({
 });
 
 Npm.depends({
-  "core-js": "3.2.1"
+  "core-js": "3.6.5"
 });
 
 Package.onUse(function(api) {
diff --git a/packages/ecmascript-runtime-server/package.js b/packages/ecmascript-runtime-server/package.js
index 12e5a683c0..68d15d1451 100644
--- a/packages/ecmascript-runtime-server/package.js
+++ b/packages/ecmascript-runtime-server/package.js
@@ -7,7 +7,7 @@ Package.describe({
 });
 
 Npm.depends({
-  "core-js": "3.2.1"
+  "core-js": "3.6.5"
 });
 
 Package.onUse(function(api) {