diff --git a/.github/workflows/check-reserved-keywords.yml b/.github/workflows/check-reserved-keywords.yml
index 5978ec7..5b4d378 100644
--- a/.github/workflows/check-reserved-keywords.yml
+++ b/.github/workflows/check-reserved-keywords.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: setup python
       uses: actions/setup-python@v5
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e6645cb..9808ce6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.12"]
         toxenv: ["py311", "quality", "docs", "pii_check"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: setup python
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 8844b1e..c94806c 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 5cd627a..f6c2354 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: setup python
         uses: actions/setup-python@v5
         with: