diff --git a/.github/workflows/check-eol-newrelease.yml b/.github/workflows/check-eol-newrelease.yml
index 34a39ec19..b5cbb667b 100644
--- a/.github/workflows/check-eol-newrelease.yml
+++ b/.github/workflows/check-eol-newrelease.yml
@@ -15,7 +15,7 @@ jobs:
     if: github.repository == 'line/line-bot-sdk-java'
     steps:
       - name: Check out code
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Run EoL & NewRelease check
         uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
diff --git a/.github/workflows/create-draft-release.yml b/.github/workflows/create-draft-release.yml
index 27639d5d1..260862ff9 100644
--- a/.github/workflows/create-draft-release.yml
+++ b/.github/workflows/create-draft-release.yml
@@ -45,7 +45,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Fetch Latest Release
         id: get-latest-release
         uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
diff --git a/.github/workflows/generate-code.yml b/.github/workflows/generate-code.yml
index dfa6b4a51..111fa8247 100644
--- a/.github/workflows/generate-code.yml
+++ b/.github/workflows/generate-code.yml
@@ -16,7 +16,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Setup
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           submodules: recursive
       - name: Update submodules
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index b29f8366e..e238fae7c 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -34,7 +34,7 @@ jobs:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
           architecture: x64
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           submodules: true
       - run: |
@@ -50,7 +50,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Run pinact
         uses: suzuki-shunsuke/pinact-action@896d595f299e71d65b9d28349d6956abe144390a # v3.0.0
         with:
diff --git a/.github/workflows/label-issue.yml b/.github/workflows/label-issue.yml
index 247c91aa4..f840cf922 100644
--- a/.github/workflows/label-issue.yml
+++ b/.github/workflows/label-issue.yml
@@ -13,7 +13,7 @@ jobs:
     permissions:
       issues: write
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Add label on issue open
         if: github.event.action == 'opened' || github.event.action == 'reopened'
diff --git a/.github/workflows/pom-validation.yml b/.github/workflows/pom-validation.yml
index 909efa89b..29f50bee1 100644
--- a/.github/workflows/pom-validation.yml
+++ b/.github/workflows/pom-validation.yml
@@ -23,7 +23,7 @@ jobs:
         distribution: 'temurin'
         java-version: ${{ matrix.java }}
         architecture: x64
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         submodules: true
     - run: |
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3f80f3a5a..8f14bd66f 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -16,7 +16,7 @@ jobs:
       contents: read
       issues: write
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           submodules: true