diff --git a/.github/actions/setup-swift/action.yml b/.github/actions/setup-swift/action.yml
index 74355b158..c35f79820 100644
--- a/.github/actions/setup-swift/action.yml
+++ b/.github/actions/setup-swift/action.yml
@@ -24,9 +24,11 @@ runs:
             VERSION="5.7.0"
           elif [ $VERSION = "5.8" ]; then
             VERSION="5.8.0"
-          # setup-swift does not yet support v5.8.1 Remove this when it does.
-          elif [ $VERSION = "5.8.1" ]; then
-            VERSION="5.8.0"
+          elif [ $VERSION = "5.9" ]; then
+            VERSION="5.9.0"
+          # setup-swift does not yet support v5.9.1 Remove this when it does.
+          elif [ $VERSION = "5.9.1" ]; then
+            VERSION="5.9.0"
           fi 
         fi
         echo "version=$VERSION" | tee -a $GITHUB_OUTPUT
diff --git a/.github/workflows/debug-artifacts-failure.yml b/.github/workflows/debug-artifacts-failure.yml
index 41cc5e354..c15d92c00 100644
--- a/.github/workflows/debug-artifacts-failure.yml
+++ b/.github/workflows/debug-artifacts-failure.yml
@@ -42,6 +42,17 @@ jobs:
       - uses: actions/setup-go@v4
         with:
           go-version: ^1.13.1
+      - name: Setup Python on MacOS
+        uses: actions/setup-python@v4
+        if: |
+          matrix.os == 'macos-latest' && (
+          matrix.version == 'stable-20220908' ||
+          matrix.version == 'stable-20221211' ||
+          matrix.version == 'stable-20230418' ||
+          matrix.version == 'stable-v2.13.5' ||
+          matrix.version == 'stable-v2.14.6')
+        with:
+          python-version: '3.11'
       - uses: ./../action/init
         with:
           tools: ${{ steps.prepare-test.outputs.tools-url }}
@@ -52,7 +63,7 @@ jobs:
         shell: bash
         run: ./build.sh
       - uses: ./../action/analyze
-        id: analysis  
+        id: analysis
         with:
           expect-error: true
           ram: 1
diff --git a/.github/workflows/debug-artifacts.yml b/.github/workflows/debug-artifacts.yml
index 7bee24739..5ce95784c 100644
--- a/.github/workflows/debug-artifacts.yml
+++ b/.github/workflows/debug-artifacts.yml
@@ -49,6 +49,17 @@ jobs:
       - uses: actions/setup-go@v4
         with:
           go-version: ^1.13.1
+      - name: Setup Python on MacOS
+        uses: actions/setup-python@v4
+        if: |
+          matrix.os == 'macos-latest' && (
+          matrix.version == 'stable-20220908' ||
+          matrix.version == 'stable-20221211' ||
+          matrix.version == 'stable-20230418' ||
+          matrix.version == 'stable-v2.13.5' ||
+          matrix.version == 'stable-v2.14.6')
+        with:
+          python-version: '3.11'
       - uses: ./../action/init
         id: init
         with:
@@ -63,7 +74,7 @@ jobs:
         shell: bash
         run: ./build.sh
       - uses: ./../action/analyze
-        id: analysis  
+        id: analysis
   download-and-check-artifacts:
     name: Download and check debug artifacts
     needs: upload-artifacts
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a30b121f6..eee22dff7 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]
 
 - Customers running Python analysis on macOS using version 2.14.6 or earlier of the CodeQL CLI should upgrade to CodeQL CLI version 2.15.0 or later. If you do not wish to upgrade the CodeQL CLI, ensure that you are using Python version 3.11 or earlier, as CodeQL version 2.14.6 and earlier do not support Python 3.12. You can achieve this by adding a [`setup-python`](https://github.com/actions/setup-python) step to your code scanning workflow before the step that invokes `github/codeql-action/init`.
+- Update default CodeQL bundle version to 2.15.2. [#1978](https://github.com/github/codeql-action/pull/1978)
 
 ## 2.22.5 - 27 Oct 2023
 
diff --git a/lib/defaults.json b/lib/defaults.json
index 977a88f96..0314f5c13 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,6 +1,6 @@
 {
-    "bundleVersion": "codeql-bundle-v2.15.1",
-    "cliVersion": "2.15.1",
-    "priorBundleVersion": "codeql-bundle-v2.15.0",
-    "priorCliVersion": "2.15.0"
+    "bundleVersion": "codeql-bundle-v2.15.2",
+    "cliVersion": "2.15.2",
+    "priorBundleVersion": "codeql-bundle-v2.15.1",
+    "priorCliVersion": "2.15.1"
 }
diff --git a/src/defaults.json b/src/defaults.json
index 52ce5f795..5ccbf00d8 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,6 +1,6 @@
 {
-  "bundleVersion": "codeql-bundle-v2.15.1",
-  "cliVersion": "2.15.1",
-  "priorBundleVersion": "codeql-bundle-v2.15.0",
-  "priorCliVersion": "2.15.0"
+  "bundleVersion": "codeql-bundle-v2.15.2",
+  "cliVersion": "2.15.2",
+  "priorBundleVersion": "codeql-bundle-v2.15.1",
+  "priorCliVersion": "2.15.1"
 }