diff --git a/kolibri/core/package.json b/kolibri/core/package.json
index c2fd64e905..f5ae975be8 100644
--- a/kolibri/core/package.json
+++ b/kolibri/core/package.json
@@ -4,6 +4,6 @@
   "private": true,
   "version": "0.0.1",
   "dependencies": {
-    "core-js": "^3.39"
+    "core-js": "^3.40"
   }
 }
diff --git a/packages/hashi/package.json b/packages/hashi/package.json
index a26986acdd..db63f45868 100644
--- a/packages/hashi/package.json
+++ b/packages/hashi/package.json
@@ -20,7 +20,7 @@
     "purgecss": "^6.0.0"
   },
   "dependencies": {
-    "core-js": "3.39",
+    "core-js": "3.40",
     "dayjs": "^1.11.13",
     "iri": "^1.3.1",
     "is-language-code": "^3.1.0",
diff --git a/yarn.lock b/yarn.lock
index a24b69e5bc..5856203a1e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4032,10 +4032,10 @@ core-js-compat@^3.38.0, core-js-compat@^3.38.1:
   dependencies:
     browserslist "^4.23.3"
 
-core-js@3.39, core-js@^3, core-js@^3.39:
-  version "3.39.0"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.39.0.tgz#57f7647f4d2d030c32a72ea23a0555b2eaa30f83"
-  integrity sha512-raM0ew0/jJUqkJ0E6e8UDtl+y/7ktFivgWvqw8dNSQeNWoSDLvQ1H/RN3aPXB9tBd4/FhyR4RDPGhsNIMsAn7g==
+core-js@3.40, core-js@^3, core-js@^3.40:
+  version "3.40.0"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.40.0.tgz#2773f6b06877d8eda102fc42f828176437062476"
+  integrity sha512-7vsMc/Lty6AGnn7uFpYT56QesI5D2Y/UkgKounk87OP9Z2H9Z8kj6jzcSGAxFmUtDOS0ntK6lbQz+Nsa0Jj6mQ==
 
 core-js@^2.4.0, core-js@^2.5.0:
   version "2.6.12"