diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 74b9f6d..d16c027 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
         os: ["ubuntu-latest"]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ruby/setup-ruby@v1.264.0
       with:
         ruby-version: 3.3.9
@@ -43,7 +43,7 @@ jobs:
         shell: ["sh","bash"]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Download all workflow run artifacts
       uses: actions/download-artifact@v4
     - name: test ${{ matrix.os }} package
diff --git a/.github/workflows/manual_release.yml b/.github/workflows/manual_release.yml
index 4678865..3ec3ed9 100644
--- a/.github/workflows/manual_release.yml
+++ b/.github/workflows/manual_release.yml
@@ -29,7 +29,7 @@ jobs:
     permissions:
       contents: write
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0eaf526..280ce0c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,7 +9,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 8648e81..17e6b4d 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0