diff --git a/CHANGELOG.md b/CHANGELOG.md
index b772d4341..239a26492 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Update default CodeQL bundle version to 2.13.5. [#1743](https://github.com/github/codeql-action/pull/1743)
 
 ## 2.20.2 - 03 Jul 2023
 
diff --git a/lib/defaults.json b/lib/defaults.json
index fb74b1b46..79119f48b 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,6 +1,6 @@
 {
-    "bundleVersion": "codeql-bundle-v2.13.4",
-    "cliVersion": "2.13.4",
-    "priorBundleVersion": "codeql-bundle-20230524",
-    "priorCliVersion": "2.13.3"
+    "bundleVersion": "codeql-bundle-v2.13.5",
+    "cliVersion": "2.13.5",
+    "priorBundleVersion": "codeql-bundle-v2.13.4",
+    "priorCliVersion": "2.13.4"
 }
diff --git a/src/defaults.json b/src/defaults.json
index 49aeca5db..14cfcb2e1 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,6 +1,6 @@
 {
-  "bundleVersion": "codeql-bundle-v2.13.4",
-  "cliVersion": "2.13.4",
-  "priorBundleVersion": "codeql-bundle-20230524",
-  "priorCliVersion": "2.13.3"
+  "bundleVersion": "codeql-bundle-v2.13.5",
+  "cliVersion": "2.13.5",
+  "priorBundleVersion": "codeql-bundle-v2.13.4",
+  "priorCliVersion": "2.13.4"
 }