diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 548e8a53b4..b5c046d44c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
         doc-type: ['HTML', 'EPUB', 'PDF']
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/deploy_5.yml b/.github/workflows/deploy_5.yml
index 6b5652f2e7..e828521896 100644
--- a/.github/workflows/deploy_5.yml
+++ b/.github/workflows/deploy_5.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Cloning repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/deploy_5next.yml b/.github/workflows/deploy_5next.yml
index e161525918..cecbc067c5 100644
--- a/.github/workflows/deploy_5next.yml
+++ b/.github/workflows/deploy_5next.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Cloning repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0