diff --git a/.github/workflows/dependabot_auto_approve.yml b/.github/workflows/dependabot_auto_approve.yml
index 0ed1caeb..3cf3216e 100644
--- a/.github/workflows/dependabot_auto_approve.yml
+++ b/.github/workflows/dependabot_auto_approve.yml
@@ -17,7 +17,7 @@ jobs:
     if: github.actor == 'dependabot[bot]' || github.actor == 'dependabot'
     steps:
       - name: Checkout code (not strictly necessary for just approval)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         # no further steps needed for just approval
 
       - name: Auto-approve Dependabot PR
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index be5f659f..eab0b398 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Run Labeler
         uses: crazy-max/ghaction-github-labeler@v5.3.0
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index beff5484..f147eaab 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,7 +35,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.release.tag_name }}
           fetch-depth: 0
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3fa101cd..330ab27c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python ${{ matrix.python }}
         uses: actions/setup-python@v5
@@ -136,7 +136,7 @@ jobs:
     needs: tests
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
         uses: actions/setup-python@v5