diff --git a/.github/workflows/bump.yml b/.github/workflows/bump.yml
index 3e58626..868a648 100644
--- a/.github/workflows/bump.yml
+++ b/.github/workflows/bump.yml
@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 79f0d81..da088bd 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -47,7 +47,7 @@ jobs:
   format:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           ref: ${{ github.head_ref }}
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 53ab966..5025c5e 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -5,7 +5,7 @@ jobs:
   actionlint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
       - name: Check workflow files
         uses: rhysd/actionlint@914e7df21a07ef503a81201c76d2b11c789d3fca # v1.7.12
         with:
diff --git a/.github/workflows/update-action-hashes.yml b/.github/workflows/update-action-hashes.yml
index ec02984..fc9267c 100644
--- a/.github/workflows/update-action-hashes.yml
+++ b/.github/workflows/update-action-hashes.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           fetch-depth: 2