diff --git a/.github/workflows/depup.yml b/.github/workflows/depup.yml
index 6e707f3..d9f29c9 100644
--- a/.github/workflows/depup.yml
+++ b/.github/workflows/depup.yml
@@ -10,7 +10,7 @@ jobs:
   markdownlint-cli:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - uses: haya14busa/action-depup@94a1aaf4e4923064019214b48a43276218af7ad5 # v1.6.4
         id: depup
         with:
@@ -36,7 +36,7 @@ jobs:
   reviewdog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - uses: haya14busa/action-depup@94a1aaf4e4923064019214b48a43276218af7ad5 # v1.6.4
         id: depup
         with:
diff --git a/.github/workflows/dockerimage.yml b/.github/workflows/dockerimage.yml
index 26e44f0..7921f28 100644
--- a/.github/workflows/dockerimage.yml
+++ b/.github/workflows/dockerimage.yml
@@ -9,6 +9,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
     - name: Build the Docker image
       run: docker build --file Dockerfile --tag action-markdownlint:$(date +%s) .
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1841d5a..6f6369c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
     if: github.event.action != 'labeled'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       # Bump version on merging Pull Requests with specific labels.
       # (bump:major,bump:minor,bump:patch)
@@ -50,6 +50,6 @@ jobs:
     if: github.event.action == 'labeled'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Post bumpr status comment
         uses: haya14busa/action-bumpr@78ab5a104d20896c9c9122c64221b3aecf1a8cbb # v1.10.0
diff --git a/.github/workflows/reviewdog.yml b/.github/workflows/reviewdog.yml
index 5c98032..d9b6a16 100644
--- a/.github/workflows/reviewdog.yml
+++ b/.github/workflows/reviewdog.yml
@@ -5,7 +5,7 @@ jobs:
     name: runner / markdownlint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: markdownlint-github-check
         uses: ./
         with: