diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index d74347d..cf9b14d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -38,7 +38,7 @@ 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/coverage.yml b/.github/workflows/coverage.yml
index 1654ffc..5d567a1 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -9,7 +9,7 @@ jobs:
         python-version: ["3.13"]
         os: [ubuntu-latest]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/formatting.yml b/.github/workflows/formatting.yml
index ba29e62..9992323 100644
--- a/.github/workflows/formatting.yml
+++ b/.github/workflows/formatting.yml
@@ -10,7 +10,7 @@ jobs:
         os: [ubuntu-latest]
         tool: ["black", "isort"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/no_byte_order_mark.yml b/.github/workflows/no_byte_order_mark.yml
index 50e1abc..e81912c 100644
--- a/.github/workflows/no_byte_order_mark.yml
+++ b/.github/workflows/no_byte_order_mark.yml
@@ -11,6 +11,6 @@ jobs:
   bom-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: arma-actions/bom-check@v1
         name: Check for BOM
diff --git a/.github/workflows/packaging_test.yml b/.github/workflows/packaging_test.yml
index 18256c4..8ee2950 100644
--- a/.github/workflows/packaging_test.yml
+++ b/.github/workflows/packaging_test.yml
@@ -9,7 +9,7 @@ jobs:
         python-version: ["3.11", "3.12", "3.13"]
         os: [ubuntu-latest]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 85ad5ba..cf04f5d 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -20,7 +20,7 @@ jobs:
          python-version: ["3.13"]
          os: [ubuntu-latest]
      steps:
-       - uses: actions/checkout@v4
+       - uses: actions/checkout@v5
        - name: Set up Python ${{ matrix.python-version }}
          uses: actions/setup-python@v5
          with:
@@ -48,7 +48,7 @@ jobs:
          id-token: write
      needs: tests
      steps:
-       - uses: actions/checkout@v4
+       - uses: actions/checkout@v5
        - name: Set up Python
          uses: actions/setup-python@v5
          with:
diff --git a/.github/workflows/pythonlint.yml b/.github/workflows/pythonlint.yml
index a74c35f..0506705 100644
--- a/.github/workflows/pythonlint.yml
+++ b/.github/workflows/pythonlint.yml
@@ -11,7 +11,7 @@ jobs:
         os: [ubuntu-latest]
         linter-env: ["linting", "type_check"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index f8a15e9..e44e29c 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -9,7 +9,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         os: [ubuntu-latest]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with: