diff --git a/.github/workflows/auto_test.yml b/.github/workflows/auto_test.yml
index 646c40a..69c102d 100644
--- a/.github/workflows/auto_test.yml
+++ b/.github/workflows/auto_test.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.14", "3.13", "3.12", "3.11", "3.10"]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/.github/workflows/build_zipapp.yml b/.github/workflows/build_zipapp.yml
index 8120c84..4dae4ba 100644
--- a/.github/workflows/build_zipapp.yml
+++ b/.github/workflows/build_zipapp.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Set up Python
diff --git a/.github/workflows/publish_to_pypi.yml b/.github/workflows/publish_to_pypi.yml
index e7e7f67..5162ecd 100644
--- a/.github/workflows/publish_to_pypi.yml
+++ b/.github/workflows/publish_to_pypi.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Set up Python
diff --git a/.github/workflows/publish_to_testpypi.yml b/.github/workflows/publish_to_testpypi.yml
index 7f7b0ff..fabf2df 100644
--- a/.github/workflows/publish_to_testpypi.yml
+++ b/.github/workflows/publish_to_testpypi.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Set up Python
diff --git a/.github/workflows/test_builds.yml b/.github/workflows/test_builds.yml
index 8d50d44..153bd2c 100644
--- a/.github/workflows/test_builds.yml
+++ b/.github/workflows/test_builds.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Set up Python
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Python