diff --git a/.github/workflows/ctest.yml b/.github/workflows/ctest.yml
index b577bf7..d565b5e 100644
--- a/.github/workflows/ctest.yml
+++ b/.github/workflows/ctest.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: dependencies
         run: sudo apt-get update && sudo apt-get install -y libgtest-dev
diff --git a/.github/workflows/example.yml b/.github/workflows/example.yml
index 0a4b97d..eb0c6a8 100644
--- a/.github/workflows/example.yml
+++ b/.github/workflows/example.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: dependencies
         run: sudo apt-get update && sudo apt-get install -y libgtest-dev
@@ -38,7 +38,7 @@ jobs:
         python-version: ['3.10', '3.11', '3.12', '3.13']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -60,7 +60,7 @@ jobs:
         node-version: ['20', '22', '24']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/jest.yml b/.github/workflows/jest.yml
index 032a8bc..e562e24 100644
--- a/.github/workflows/jest.yml
+++ b/.github/workflows/jest.yml
@@ -17,7 +17,7 @@ jobs:
         node-version: ['20', '22', '24']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index 8c34008..a71f093 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -9,6 +9,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: pre-commit/action@v3.0.1
diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 99f4298..982633e 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -14,7 +14,7 @@ jobs:
         python-version: ['3.10', '3.11', '3.12', '3.13']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with: