diff --git a/Auth/LearningHub.Nhs.Auth/package-lock.json b/Auth/LearningHub.Nhs.Auth/package-lock.json
index 7f4c50e..9046724 100644
--- a/Auth/LearningHub.Nhs.Auth/package-lock.json
+++ b/Auth/LearningHub.Nhs.Auth/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "babel-polyfill": "^6.26.0",
         "concurrently": "^7.2.0",
-        "core-js": "^3.6.5",
+        "core-js": "^3.40.0",
         "nhsuk-frontend": "^7.0.0",
         "node": "^22"
       },
@@ -3365,7 +3365,9 @@
       "license": "MIT"
     },
     "node_modules/core-js": {
-      "version": "3.39.0",
+      "version": "3.40.0",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.40.0.tgz",
+      "integrity": "sha512-7vsMc/Lty6AGnn7uFpYT56QesI5D2Y/UkgKounk87OP9Z2H9Z8kj6jzcSGAxFmUtDOS0ntK6lbQz+Nsa0Jj6mQ==",
       "hasInstallScript": true,
       "license": "MIT",
       "funding": {
diff --git a/Auth/LearningHub.Nhs.Auth/package.json b/Auth/LearningHub.Nhs.Auth/package.json
index c489694..9dbf3ad 100644
--- a/Auth/LearningHub.Nhs.Auth/package.json
+++ b/Auth/LearningHub.Nhs.Auth/package.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "babel-polyfill": "^6.26.0",
     "concurrently": "^7.2.0",
-    "core-js": "^3.6.5",
+    "core-js": "^3.40.0",
     "nhsuk-frontend": "^7.0.0",
     "node": "^22"
   },