diff --git a/.github/workflows/aws-deploy.yml b/.github/workflows/aws-deploy.yml
index 37139c59..0d4bb4f8 100644
--- a/.github/workflows/aws-deploy.yml
+++ b/.github/workflows/aws-deploy.yml
@@ -13,7 +13,7 @@ jobs:
       env-name: ${{ steps.env-name.outputs.environment }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK 11
         uses: actions/setup-java@v5
         with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ab53c68..bf0d7d20 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
       # Enable additional processor optimizations: https://golang.org/wiki/MinimumRequirements#amd64
       GOAMD64: v3
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
@@ -46,7 +46,7 @@ jobs:
       # Optional: Allow write access to checks to allow the action to annotate code in the PR.
       checks: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ compile ]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
@@ -96,7 +96,7 @@ jobs:
     if: github.event_name != 'push' || github.actor != 'dependabot[bot]' && github.actor != 'dependabot-preview[bot]' && github.actor != 'dependabot'
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Run Trivy vulnerability scanner in repo mode
         uses: aquasecurity/trivy-action@master
         with:
@@ -119,7 +119,7 @@ jobs:
       POSEIDON_AWS_FUNCTIONS: ${{ secrets.POSEIDON_AWS_FUNCTIONS }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Write secrets to environment file
         run: cat ./.github/workflows/resources/.env | envsubst > ./.env
       - name: Set up Go
@@ -170,7 +170,7 @@ jobs:
       - name: Checkout matching branch for Dockerfiles (optional)
         id: checkout-dockerfiles
         if: steps.branch-name.outputs.is_default == 'false'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         continue-on-error: true
         with:
           repository: openHPI/dockerfiles
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index d34c2745..618e2252 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Go
       uses: actions/setup-go@v6
diff --git a/.github/workflows/dependabot.yml b/.github/workflows/dependabot.yml
index 85e81647..923cfe5d 100644
--- a/.github/workflows/dependabot.yml
+++ b/.github/workflows/dependabot.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Automerge dependabot dependencies
         uses: ahmadnassri/action-dependabot-auto-merge@v2
         with:
diff --git a/.github/workflows/java-ci.yml b/.github/workflows/java-ci.yml
index 2086313b..a31b77ad 100644
--- a/.github/workflows/java-ci.yml
+++ b/.github/workflows/java-ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK 11
         uses: actions/setup-java@v5
         with:
diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index df884982..7bdfb69f 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python 3
         uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/sentry-release.yml b/.github/workflows/sentry-release.yml
index 82042a15..0d94f82f 100644
--- a/.github/workflows/sentry-release.yml
+++ b/.github/workflows/sentry-release.yml
@@ -8,7 +8,7 @@ jobs:
   create-release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Create Sentry release
         uses: getsentry/action-release@v3
         env: