diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c734ce5b..0efe20a94 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ See the [releases page](https://github.com/github/codeql-action/releases) for th
 
 ## [UNRELEASED]
 
+No user facing changes.
+
+## 2.21.9 - 27 Sep 2023
+
 - Update default CodeQL bundle version to 2.14.6. [#1897](https://github.com/github/codeql-action/pull/1897)
 - We are rolling out a feature in October 2023 that will improve the success rate of C/C++ autobuild. [#1889](https://github.com/github/codeql-action/pull/1889)
 - We are rolling out a feature in October 2023 that will provide specific file coverage information for C and C++, Java and Kotlin, and JavaScript and TypeScript. Currently file coverage information for each of these pairs of languages is grouped together. [#1903](https://github.com/github/codeql-action/pull/1903)
diff --git a/node_modules/.package-lock.json b/node_modules/.package-lock.json
index 8b36b547b..a4b0eadf1 100644
--- a/node_modules/.package-lock.json
+++ b/node_modules/.package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "codeql",
-  "version": "2.21.9",
+  "version": "2.21.10",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
diff --git a/package-lock.json b/package-lock.json
index ab1516619..c794c72ab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "codeql",
-  "version": "2.21.9",
+  "version": "2.21.10",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "codeql",
-      "version": "2.21.9",
+      "version": "2.21.10",
       "license": "MIT",
       "dependencies": {
         "@actions/artifact": "^1.1.2",
diff --git a/package.json b/package.json
index 2f39cb39b..5d8281e9c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "codeql",
-  "version": "2.21.9",
+  "version": "2.21.10",
   "private": true,
   "description": "CodeQL action",
   "scripts": {