diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index 2eb0b77..878f215 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out source repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:          
diff --git a/.github/workflows/pypi-build-n-publish.yml b/.github/workflows/pypi-build-n-publish.yml
index b4ff8d6..0d51cea 100644
--- a/.github/workflows/pypi-build-n-publish.yml
+++ b/.github/workflows/pypi-build-n-publish.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out source repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
@@ -32,7 +32,7 @@ jobs:
       id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing      
     steps:
     - name: Check out source repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0 #full history
     - name: Set up Python