diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 537639c..7a1c50a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,10 +29,10 @@ jobs:
       run:
         working-directory: secure-messenger/app
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: '3.12'
       - name: Relay-Abhaengigkeiten (die Tests starten echte Server)
@@ -55,10 +55,10 @@ jobs:
       run:
         working-directory: secure-messenger/server
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: '3.12'
       - name: libsodium fuer XEdDSA
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index db641b7..79aff2c 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -30,7 +30,7 @@ jobs:
       matrix:
         language: [python, actions]
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4
         with:
           languages: ${{ matrix.language }}
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e743b88..9b8494e 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -33,7 +33,7 @@ jobs:
     outputs:
       paket: ${{ steps.schnueren.outputs.paket }}
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Werkzeuge fuer den Linux-Bau
@@ -58,7 +58,7 @@ jobs:
           tar -C build/linux/x64/release/bundle -czf "$GITHUB_WORKSPACE/aus/$PAKET" .
           (cd "$GITHUB_WORKSPACE/aus" && sha256sum "$PAKET" | tee "$PAKET.sha256")
           echo "paket=$PAKET" >> "$GITHUB_OUTPUT"
-      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: linux-paket
           path: ${{ github.workspace }}/aus/
@@ -73,14 +73,14 @@ jobs:
       id-token: write
       attestations: write
     steps:
-      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: linux-paket
           path: aus
       - name: Pruefsumme nachrechnen
         working-directory: aus
         run: sha256sum -c "${{ needs.bauen.outputs.paket }}.sha256"
-      - uses: actions/attest-build-provenance@977bb373ede98d70efdf65b84cb5f73e068dcc2a # v3
+      - uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4.2.2
         with:
           subject-path: aus/${{ needs.bauen.outputs.paket }}
       - name: An den Release haengen
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 29a0e75..e299664 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -21,7 +21,7 @@ jobs:
       security-events: write
       id-token: write
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - uses: ossf/scorecard-action@2d1146689b8cda280b9bc96326124645441f03bc # v2.4.4