diff --git a/.github/workflows/depup.yml b/.github/workflows/depup.yml
index a60e178..10cf468 100644
--- a/.github/workflows/depup.yml
+++ b/.github/workflows/depup.yml
@@ -15,7 +15,7 @@ jobs:
   shellcheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: reviewdog/action-depup@v1
         id: depup
         with:
@@ -41,7 +41,7 @@ jobs:
   reviewdog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: reviewdog/action-depup@v1
         id: depup
         with:
@@ -67,7 +67,7 @@ jobs:
   actionlint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: reviewdog/action-depup@v1
         id: depup
         with:
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 8c03f30..9fce477 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -9,6 +9,6 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: Build the Docker image
         run: docker build . --file Dockerfile --tag "reviewdog-actionlint:$(date +%s)"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 79876d5..7ff5e9f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,7 +19,7 @@ jobs:
       issues: write
       packages: write
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           fetch-depth: 0
 
@@ -64,7 +64,7 @@ jobs:
       pull-requests: write
       issues: write
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/reviewdog.yml b/.github/workflows/reviewdog.yml
index f7a97f3..13fcac0 100644
--- a/.github/workflows/reviewdog.yml
+++ b/.github/workflows/reviewdog.yml
@@ -13,7 +13,7 @@ jobs:
     name: runner / actionlint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: actionlint
         uses: ./
         with:
@@ -23,7 +23,7 @@ jobs:
     name: runner / reviewdog
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: actionlint w/ reviewdog
         uses: ./
         with:
@@ -34,7 +34,7 @@ jobs:
     name: runner / shellcheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: actionlint w/ shellcheck
         uses: ./
         with:
@@ -45,7 +45,7 @@ jobs:
     name: runner / pyflakes
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: actionlint w/ pyflakes
         uses: ./
         with: