diff --git a/.github/workflows/build-test-release.yml b/.github/workflows/build-test-release.yml
index 75f83a6a..264188bd 100644
--- a/.github/workflows/build-test-release.yml
+++ b/.github/workflows/build-test-release.yml
@@ -36,7 +36,7 @@ jobs:
     steps:
 
       - name: Checkout source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Python 3.13
         uses: actions/setup-python@v5
@@ -76,7 +76,7 @@ jobs:
     steps:
 
       - name: Checkout source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Python ${{ matrix.python }}
         uses: actions/setup-python@v5
@@ -107,7 +107,7 @@ jobs:
     steps:
 
       - name: Checkout source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Python ${{ matrix.python }}
         uses: actions/setup-python@v5
diff --git a/.github/workflows/check-code-quality.yml b/.github/workflows/check-code-quality.yml
index fcd7d0bf..ebf3fe1a 100644
--- a/.github/workflows/check-code-quality.yml
+++ b/.github/workflows/check-code-quality.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/citations.yml b/.github/workflows/citations.yml
index b11b2e90..0fbcea23 100644
--- a/.github/workflows/citations.yml
+++ b/.github/workflows/citations.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Install R
       run: |
         sudo apt-get update && sudo apt-get install -y r-base
diff --git a/.github/workflows/reuse-compliance.yml b/.github/workflows/reuse-compliance.yml
index 5c342b73..63d525de 100644
--- a/.github/workflows/reuse-compliance.yml
+++ b/.github/workflows/reuse-compliance.yml
@@ -20,6 +20,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: REUSE Compliance Check
       uses: fsfe/reuse-action@v5
diff --git a/.github/workflows/sonar.yml b/.github/workflows/sonar.yml
index a2f59ebe..7f890acb 100644
--- a/.github/workflows/sonar.yml
+++ b/.github/workflows/sonar.yml
@@ -26,7 +26,7 @@ jobs:
     steps:
 
       - name: Checkout source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis