diff --git a/.github/workflows/cleanup-cache-postpr.yml b/.github/workflows/cleanup-cache-postpr.yml
index 89b1e630..c2bf468f 100644
--- a/.github/workflows/cleanup-cache-postpr.yml
+++ b/.github/workflows/cleanup-cache-postpr.yml
@@ -16,7 +16,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Clean up ccache
         run: |
           gh extension install actions/gh-actions-cache
diff --git a/.github/workflows/cleanup-cache.yml b/.github/workflows/cleanup-cache.yml
index 46563ff1..98e48cd9 100644
--- a/.github/workflows/cleanup-cache.yml
+++ b/.github/workflows/cleanup-cache.yml
@@ -16,7 +16,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Clean up ccache
         run: |
           gh extension install actions/gh-actions-cache
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index edb4d6c8..4dae966e 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install codespell
         run: |
diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index 4a4b2838..0323188b 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -10,13 +10,13 @@ jobs:
   tabs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Tabs
         run: .github/workflows/style/check_tabs.sh
 
   trailing_whitespaces:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Trailing Whitespaces
         run: .github/workflows/style/check_trailing_whitespaces.sh