diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 0b2a7b4..409658e 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -23,7 +23,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
           submodules: recursive
diff --git a/.github/workflows/periodic_check.yml b/.github/workflows/periodic_check.yml
index 6253b48..19b454c 100644
--- a/.github/workflows/periodic_check.yml
+++ b/.github/workflows/periodic_check.yml
@@ -14,7 +14,7 @@ jobs:
       matrix-json: ${{ steps.matrix.outputs.matrix }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
           submodules: recursive
@@ -38,7 +38,7 @@ jobs:
       matrix: ${{ fromJSON(needs.create_matrix.outputs.matrix-json) }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
           submodules: recursive
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 54950f7..bb8b4f8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,7 @@ jobs:
       matrix-json: ${{ steps.matrix.outputs.matrix }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
           submodules: recursive
@@ -44,7 +44,7 @@ jobs:
       matrix: ${{ fromJSON(needs.create_matrix.outputs.matrix-json) }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
           submodules: recursive