diff --git a/.github/workflows/deploy-mkdocs.yml b/.github/workflows/deploy-mkdocs.yml
index 247c135..06ca3a7 100644
--- a/.github/workflows/deploy-mkdocs.yml
+++ b/.github/workflows/deploy-mkdocs.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f01a3d2..efbee1e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         name: Install Python
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e795300..c797f7f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,7 +16,7 @@ jobs:
         python-version: [3.8, 3.9, "3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
         id: setup-python