diff --git a/.github/workflows/ci_docs.yml b/.github/workflows/ci_docs.yml
index 7902d98..530e0b4 100644
--- a/.github/workflows/ci_docs.yml
+++ b/.github/workflows/ci_docs.yml
@@ -21,7 +21,7 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0  # fetch all history for all branches and tags
       - uses: actions/setup-python@v4
diff --git a/.github/workflows/ci_test-acts.yml b/.github/workflows/ci_test-acts.yml
index 205e268..8fb5503 100644
--- a/.github/workflows/ci_test-acts.yml
+++ b/.github/workflows/ci_test-acts.yml
@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 15
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0  # fetch all history for all branches and tags
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/.github/workflows/docs-deploy.yml b/.github/workflows/docs-deploy.yml
index 0547d8b..aa1ad28 100644
--- a/.github/workflows/docs-deploy.yml
+++ b/.github/workflows/docs-deploy.yml
@@ -16,7 +16,7 @@ jobs:
       PATH_DATASETS: ${{ github.workspace }}/.datasets
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: publication
       - uses: actions/setup-python@v4