diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0253b3a..180cfb1 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -41,7 +41,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index ed7377a..769aed1 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -13,7 +13,7 @@ jobs:
     name: Check with Ruff
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -29,7 +29,7 @@ jobs:
   PyLint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -48,7 +48,7 @@ jobs:
   MyPy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -67,7 +67,7 @@ jobs:
   Black:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -83,7 +83,7 @@ jobs:
   Refurb:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -106,7 +106,7 @@ jobs:
 
     name: "Script based python ${{ matrix.python-version }} on ${{ matrix.os }}"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
@@ -145,7 +145,7 @@ jobs:
     needs: [ Test ]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0  # need for setuptools_scm
       - name: Set up Python
@@ -169,7 +169,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ Build ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with: