diff --git a/.github/workflows/check_dependabot_pull_request.yml b/.github/workflows/check_dependabot_pull_request.yml
index 20eb002..90dd1b9 100644
--- a/.github/workflows/check_dependabot_pull_request.yml
+++ b/.github/workflows/check_dependabot_pull_request.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up JDK
         uses: actions/setup-java@v5
diff --git a/.github/workflows/java-ci.yaml b/.github/workflows/java-ci.yaml
index 0a8b3af..96b79c0 100644
--- a/.github/workflows/java-ci.yaml
+++ b/.github/workflows/java-ci.yaml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up JDK
         uses: actions/setup-java@v5
diff --git a/.github/workflows/jekyll-gh-pages.yml b/.github/workflows/jekyll-gh-pages.yml
index 8d07085..cf1d8e8 100644
--- a/.github/workflows/jekyll-gh-pages.yml
+++ b/.github/workflows/jekyll-gh-pages.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Build with Jekyll
diff --git a/.github/workflows/release_and_push.yml b/.github/workflows/release_and_push.yml
index 856585d..bae3d5f 100644
--- a/.github/workflows/release_and_push.yml
+++ b/.github/workflows/release_and_push.yml
@@ -13,7 +13,7 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Java for publishing to Maven Central Repository
         uses: actions/setup-java@v5