diff --git a/.github/workflows/deploy_to_pypi.yml b/.github/workflows/deploy_to_pypi.yml
index fa5cf77..d88480e 100644
--- a/.github/workflows/deploy_to_pypi.yml
+++ b/.github/workflows/deploy_to_pypi.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build and publish to PyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Set up Python 3.10
diff --git a/.github/workflows/lindandtest.yml b/.github/workflows/lindandtest.yml
index 3871a1e..45199fc 100644
--- a/.github/workflows/lindandtest.yml
+++ b/.github/workflows/lindandtest.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.10
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/rename_project.yml b/.github/workflows/rename_project.yml
index dc44eb0..ba640ad 100644
--- a/.github/workflows/rename_project.yml
+++ b/.github/workflows/rename_project.yml
@@ -9,7 +9,7 @@ jobs:
     if: ${{ !contains (github.repository, '/photonai_module_template') }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           # by default, it uses a depth of 1
           # this fetches all history so that we can read each commit
diff --git a/.github/workflows/update_documentation.yml b/.github/workflows/update_documentation.yml
index d146aa7..f668ea2 100644
--- a/.github/workflows/update_documentation.yml
+++ b/.github/workflows/update_documentation.yml
@@ -8,7 +8,7 @@ jobs:
     if: ${{ github.ref != 'refs/heads/main' }}
     steps:
       - name: Checkout main
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Python
         uses: actions/setup-python@v4
@@ -33,7 +33,7 @@ jobs:
     if: ${{ github.ref == 'refs/heads/main' }}
     steps:
       - name: Checkout main
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Python
         uses: actions/setup-python@v4