diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1d14e0b..0ab0df8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -63,7 +63,7 @@ jobs:
               run: cd docs && make html
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Python environment
         uses: ./.github/actions/setup-venv
@@ -105,7 +105,7 @@ jobs:
     needs: [checks]
     if: startsWith(github.ref, 'refs/tags/')
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/pr_checks.yml b/.github/workflows/pr_checks.yml
index 7d2ab62..c11d893 100644
--- a/.github/workflows/pr_checks.yml
+++ b/.github/workflows/pr_checks.yml
@@ -18,7 +18,7 @@ jobs:
     if: github.event_name == 'pull_request'
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/setup.yml b/.github/workflows/setup.yml
index 972d8ad..7e4467a 100644
--- a/.github/workflows/setup.yml
+++ b/.github/workflows/setup.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: [ubuntu-latest]
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v4