diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08d6d04ffd..7664584f95 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ See the [releases page](https://github.com/github/codeql-action/releases) for th
 ## [UNRELEASED]
 
 - The `cleanup-level` input to the `analyze` Action is now deprecated. The CodeQL Action has not written intermediate results to the database since version 2.2.5, so this option now has little to no practical use. [#2998](https://github.com/github/codeql-action/pull/2998)
+- Update default CodeQL bundle version to 2.22.3. [#3000](https://github.com/github/codeql-action/pull/3000)
 
 ## 3.29.5 - 29 Jul 2025
 
diff --git a/lib/defaults.json b/lib/defaults.json
index d8d174e08a..86ec47dcce 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,6 +1,6 @@
 {
-    "bundleVersion": "codeql-bundle-v2.22.2",
-    "cliVersion": "2.22.2",
-    "priorBundleVersion": "codeql-bundle-v2.22.1",
-    "priorCliVersion": "2.22.1"
+    "bundleVersion": "codeql-bundle-v2.22.3",
+    "cliVersion": "2.22.3",
+    "priorBundleVersion": "codeql-bundle-v2.22.2",
+    "priorCliVersion": "2.22.2"
 }
diff --git a/src/defaults.json b/src/defaults.json
index b852db8c53..8623ae66d9 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,6 +1,6 @@
 {
-  "bundleVersion": "codeql-bundle-v2.22.2",
-  "cliVersion": "2.22.2",
-  "priorBundleVersion": "codeql-bundle-v2.22.1",
-  "priorCliVersion": "2.22.1"
+  "bundleVersion": "codeql-bundle-v2.22.3",
+  "cliVersion": "2.22.3",
+  "priorBundleVersion": "codeql-bundle-v2.22.2",
+  "priorCliVersion": "2.22.2"
 }