diff --git a/.github/workflows/notebooks-check_ubuntu.yml b/.github/workflows/notebooks-check_ubuntu.yml
index af0c7e3..26f3766 100644
--- a/.github/workflows/notebooks-check_ubuntu.yml
+++ b/.github/workflows/notebooks-check_ubuntu.yml
@@ -20,7 +20,7 @@ jobs:
   test-linux-oldest-allowed-versions:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install uv
         uses: astral-sh/setup-uv@v7
       - name: Setup python 3.9
@@ -38,7 +38,7 @@ jobs:
   test-linux-newest-versions:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup python 3.13
         uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/notebooks-check_windows.yml b/.github/workflows/notebooks-check_windows.yml
index d93f1e8..89dccce 100644
--- a/.github/workflows/notebooks-check_windows.yml
+++ b/.github/workflows/notebooks-check_windows.yml
@@ -21,7 +21,7 @@ jobs:
       matrix:
         python-version: ["3.11"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/notebooks-checks_mac-os.yml b/.github/workflows/notebooks-checks_mac-os.yml
index 84212fb..609fbf8 100644
--- a/.github/workflows/notebooks-checks_mac-os.yml
+++ b/.github/workflows/notebooks-checks_mac-os.yml
@@ -20,7 +20,7 @@ jobs:
       matrix:
         python-version: ["3.10", "3.12"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/validate_codemeta.yml b/.github/workflows/validate_codemeta.yml
index 5c203f3..13ae6ef 100644
--- a/.github/workflows/validate_codemeta.yml
+++ b/.github/workflows/validate_codemeta.yml
@@ -11,6 +11,6 @@ jobs:
     container:
       image: gitlab-registry.in2p3.fr/escape2020/wp3/eossr:v1.0
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: validate codemeta
         run: eossr-metadata-validator codemeta.json