diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e6f42e1..0cb3cb0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,13 +17,13 @@ jobs:
   backend-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1   # v7.0.1
 
-      - uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95   # v5
+      - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961   # v5
         with:
           java-version: '21'
           distribution: 'temurin'
@@ -39,7 +39,7 @@ jobs:
   frontend-build:
     runs-on: ubuntu-latest
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
@@ -82,13 +82,13 @@ jobs:
       packages: write
       security-events: write
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1   # v7.0.1
 
-      - uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95   # v5
+      - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961   # v5
         with:
           java-version: '21'
           distribution: 'temurin'
@@ -103,7 +103,7 @@ jobs:
 
       - name: Log in to GitHub Container Registry
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0   # v4.4.0
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f   # v4.6.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -141,7 +141,7 @@ jobs:
 
       - name: Upload Trivy SARIF
         if: always()
-        uses: github/codeql-action/upload-sarif@7188fc363630916deb702c7fdcf4e481b751f97a   # v4.37.1
+        uses: github/codeql-action/upload-sarif@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28   # v4.37.8
         with:
           sarif_file: trivy-backend.sarif
 
@@ -163,7 +163,7 @@ jobs:
 
       - name: Upload Trivy report SARIF
         if: always()
-        uses: github/codeql-action/upload-sarif@7188fc363630916deb702c7fdcf4e481b751f97a   # v4.37.1
+        uses: github/codeql-action/upload-sarif@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28   # v4.37.8
         with:
           sarif_file: trivy-backend-report.sarif
           category: trivy-report-backend
@@ -184,7 +184,7 @@ jobs:
       packages: write
       security-events: write
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
@@ -192,7 +192,7 @@ jobs:
 
       - name: Log in to GitHub Container Registry
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0   # v4.4.0
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f   # v4.6.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -230,7 +230,7 @@ jobs:
 
       - name: Upload Trivy SARIF
         if: always()
-        uses: github/codeql-action/upload-sarif@7188fc363630916deb702c7fdcf4e481b751f97a   # v4.37.1
+        uses: github/codeql-action/upload-sarif@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28   # v4.37.8
         with:
           sarif_file: trivy-frontend.sarif
 
@@ -252,7 +252,7 @@ jobs:
 
       - name: Upload Trivy report SARIF
         if: always()
-        uses: github/codeql-action/upload-sarif@7188fc363630916deb702c7fdcf4e481b751f97a   # v4.37.1
+        uses: github/codeql-action/upload-sarif@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28   # v4.37.8
         with:
           sarif_file: trivy-frontend-report.sarif
           category: trivy-report-frontend
@@ -270,17 +270,17 @@ jobs:
     permissions:
       contents: write   # Dependency Graph schreiben
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1            # v7.0.1
-      - uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95          # v5
+      - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961          # v5
         with:
           java-version: '21'
           distribution: 'temurin'
       - name: Submit Gradle dependency graph
-        uses: gradle/actions/dependency-submission@3f131e8634966bd73d06cc69884922b02e6faf92   # v6.2.0
+        uses: gradle/actions/dependency-submission@9c971963bec38e04b3d30dcc455b5382be2fdbfb   # v6.3.0
         with:
           build-root-directory: backend
 
@@ -292,7 +292,7 @@ jobs:
       contents: read
       pull-requests: write
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
@@ -308,7 +308,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5e4ea79..24e9c7b 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -29,16 +29,16 @@ jobs:
           - language: javascript-typescript
             build-mode: none
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1              # v7.0.1
-      - uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95            # v5
+      - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961            # v5
         if: matrix.language == 'java-kotlin'
         with:
           java-version: '21'
           distribution: 'temurin'
-      - uses: github/codeql-action/init@7188fc363630916deb702c7fdcf4e481b751f97a     # v4.37.1
+      - uses: github/codeql-action/init@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28     # v4.37.8
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -50,7 +50,7 @@ jobs:
           chmod +x gradlew
           ./gradlew compileTestKotlin -x test --no-daemon
         working-directory: backend
-      - uses: github/codeql-action/analyze@7188fc363630916deb702c7fdcf4e481b751f97a  # v4.37.1
+      - uses: github/codeql-action/analyze@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28  # v4.37.8
         continue-on-error: ${{ matrix.language == 'java-kotlin' }}   # temp: see issue #26
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 4d002a1..87cfaf1 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -22,7 +22,7 @@ jobs:
             gradle_build: false
 
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
@@ -30,7 +30,7 @@ jobs:
 
       - name: Set up JDK 21
         if: matrix.gradle_build
-        uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95   # v5
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961   # v5
         with:
           java-version: '21'
           distribution: 'temurin'
@@ -45,9 +45,9 @@ jobs:
 
       - uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8   # v4.2.0
 
-      - uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c   # v4.2.0
+      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e   # v4.3.0
 
-      - uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0   # v4.4.0
+      - uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f   # v4.6.0
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 7fac9b0..be67ba1 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -12,7 +12,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/nightly-security.yml b/.github/workflows/nightly-security.yml
index 9e3b253..4e6ee27 100644
--- a/.github/workflows/nightly-security.yml
+++ b/.github/workflows/nightly-security.yml
@@ -20,7 +20,7 @@ jobs:
   trivy-repo-scan:
     runs-on: ubuntu-latest
     steps:
-      - uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920   # v2
+      - uses: step-security/harden-runner@05e31511f85b41b11d1cf0ef85d0992719546e2c   # v2
         with:
           egress-policy: audit
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1              # v7.0.1
@@ -40,7 +40,7 @@ jobs:
           output: trivy-nightly.sarif
       - name: Upload SARIF
         if: always()
-        uses: github/codeql-action/upload-sarif@7188fc363630916deb702c7fdcf4e481b751f97a   # v4.37.1
+        uses: github/codeql-action/upload-sarif@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28   # v4.37.8
         with:
           sarif_file: trivy-nightly.sarif
           category: trivy-nightly