diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index b626062..bf9e208 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -29,7 +29,7 @@ jobs:
       commit_sha: ${{ steps.commit_version.outputs.commit_sha }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0  # Need full history for git bundle
 
@@ -88,7 +88,7 @@ jobs:
           git bundle create repo.bundle --all
 
       - name: Upload bundle as artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: git-repo-bundle
           path: repo.bundle
@@ -119,7 +119,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Download git bundle
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: git-repo-bundle
 
@@ -207,7 +207,7 @@ jobs:
           fi
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: ${{ matrix.asset_name }}-binary
           path: ./repo/dist/treemapper-*
@@ -225,7 +225,7 @@ jobs:
       id-token: write
     steps:
       - name: Download git bundle
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: git-repo-bundle
 
@@ -290,7 +290,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download git bundle
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: git-repo-bundle
 
@@ -325,7 +325,7 @@ jobs:
           echo "Successfully pushed version commit and tag"
 
       - name: Download all build artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: ./artifacts
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 64e8291..d9dd24a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     name: Pre-commit hooks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v6
@@ -93,7 +93,7 @@ jobs:
 
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
@@ -140,7 +140,7 @@ jobs:
 
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up PyPy ${{ matrix.python-version }}
         uses: actions/setup-python@v6
@@ -176,7 +176,7 @@ jobs:
         python-version: ['3.10', '3.11', '3.12']
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
@@ -221,7 +221,7 @@ jobs:
           verbose: true
 
       - name: Upload coverage for SonarCloud
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: matrix.python-version == '3.12'
         with:
           name: coverage-report
@@ -240,7 +240,7 @@ jobs:
     if: github.event_name == 'push' && github.ref == 'refs/heads/main'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -270,7 +270,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -306,7 +306,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -357,12 +357,12 @@ jobs:
     if: github.event_name == 'pull_request' || github.ref == 'refs/heads/main'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Download coverage reports
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: coverage-report
           path: .