diff --git a/CHANGELOG.md b/CHANGELOG.md
index 991ca354a4..dd87ce4e16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Update default CodeQL bundle version to 2.6.1. [#733](https://github.com/github/codeql-action/pull/733)
 
 ## 1.0.13 - 06 Sep 2021
 
diff --git a/lib/defaults.json b/lib/defaults.json
index af2d5a798a..c9cc342861 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,3 +1,3 @@
 {
-    "bundleVersion": "codeql-bundle-20210824"
+    "bundleVersion": "codeql-bundle-20210907"
 }
diff --git a/src/defaults.json b/src/defaults.json
index 1c39702df7..39537f3095 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,3 +1,3 @@
 {
-	"bundleVersion": "codeql-bundle-20210824"
+	"bundleVersion": "codeql-bundle-20210907"
 }