diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index e3e74400..a218bf0e 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4
diff --git a/.github/workflows/deployment-tests.yml b/.github/workflows/deployment-tests.yml
index 9b98c999..954feead 100644
--- a/.github/workflows/deployment-tests.yml
+++ b/.github/workflows/deployment-tests.yml
@@ -39,7 +39,7 @@ jobs:
         os_container: ['rockylinux8', 'rockylinux9', 'ubuntu22_04', 'ubuntu24_04']
     container: matterminers/cobald-tardis-deployment-test-env:${{ matrix.os_container }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies on ${{ matrix.os_container }}
         shell: bash
         run: |
@@ -61,7 +61,7 @@ jobs:
         platform: ['macos-latest']
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Add Python 3.12 to GITHUB_PATH
         run: echo "/Library/Frameworks/Python.framework/Versions/3.12/bin" >> $GITHUB_PATH
       - name: Install dependencies on ${{ matrix.platform }}
diff --git a/.github/workflows/docker-builds.yml b/.github/workflows/docker-builds.yml
index 74777a6a..fc1516b7 100644
--- a/.github/workflows/docker-builds.yml
+++ b/.github/workflows/docker-builds.yml
@@ -14,7 +14,7 @@ jobs:
   setup-docker-builds:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Get containers to build
         id: get_containers
         run: |
@@ -40,7 +40,7 @@ jobs:
           containers: ${{ fromJSON(needs.setup-docker-builds.outputs.containers) }}
       steps:
         - name: Checkout
-          uses: actions/checkout@v5
+          uses: actions/checkout@v6
         - name: Set up Docker Buildx
           uses: docker/setup-buildx-action@v3
         - name: Docker meta
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index d98e7c74..668cdf59 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index 65b8bc87..4fe10b47 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -10,7 +10,7 @@ jobs:
         python-version: ['3.9', '3.10', '3.11', '3.12']
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/verification.yml b/.github/workflows/verification.yml
index a7f7dd0b..5aff073c 100644
--- a/.github/workflows/verification.yml
+++ b/.github/workflows/verification.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with: