diff --git a/package-lock.json b/package-lock.json
index 330298cbaac..01a9756de18 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "prebid.js",
-  "version": "4.15.0-pre",
+  "version": "4.28.0-pre",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -6153,9 +6153,9 @@
       }
     },
     "core-js-pure": {
-      "version": "3.6.5",
-      "resolved": "https://registry.npmjs.org/core-js-pure/-/core-js-pure-3.6.5.tgz",
-      "integrity": "sha512-lacdXOimsiD0QyNf9BC/mxivNJ/ybBGJXQFKzRekp1WTHoVUWsUHEn+2T8GJAzzIhyOuXA+gOxCVN3l+5PLPUA=="
+      "version": "3.9.0",
+      "resolved": "https://registry.npmjs.org/core-js-pure/-/core-js-pure-3.9.0.tgz",
+      "integrity": "sha512-3pEcmMZC9Cq0D4ZBh3pe2HLtqxpGNJBLXF/kZ2YzK17RbKp94w0HFbdbSx8H8kAlZG5k76hvLrkPm57Uyef+kg=="
     },
     "core-util-is": {
       "version": "1.0.2",
diff --git a/package.json b/package.json
index dc0a46844ca..1e89d4688b3 100644
--- a/package.json
+++ b/package.json
@@ -103,7 +103,7 @@
   "dependencies": {
     "babel-plugin-transform-object-assign": "^6.22.0",
     "core-js": "^3.0.0",
-    "core-js-pure": "^3.6.5",
+    "core-js-pure": "^3.9.0",
     "criteo-direct-rsa-validate": "^1.1.0",
     "crypto-js": "^3.3.0",
     "dlv": "1.1.3",