diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 1570135..ef60667 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -14,17 +14,17 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ github.token }}
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= tee-pot:SS6HcrpG87S1M6HZGPsfo7d1xJccCGev7/tXc5+I4jg=
-            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
+            substituters = https://cache.nixos.org/ https://static.188.92.12.49.clients.your-server.de/tee-pot
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://attic.teepot.org/
+          endpoint: https://static.188.92.12.49.clients.your-server.de/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
       - run: nix flake check -L --show-trace --keep-going
@@ -32,17 +32,17 @@ jobs:
   fmt:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ github.token }}
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= tee-pot:SS6HcrpG87S1M6HZGPsfo7d1xJccCGev7/tXc5+I4jg=
-            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
+            substituters = https://cache.nixos.org/ https://static.188.92.12.49.clients.your-server.de/tee-pot
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://attic.teepot.org/
+          endpoint: https://static.188.92.12.49.clients.your-server.de/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
       - run: nix fmt
@@ -50,17 +50,17 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ github.token }}
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= tee-pot:SS6HcrpG87S1M6HZGPsfo7d1xJccCGev7/tXc5+I4jg=
-            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
+            substituters = https://cache.nixos.org/ https://static.188.92.12.49.clients.your-server.de/tee-pot
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://attic.teepot.org/
+          endpoint: https://static.188.92.12.49.clients.your-server.de/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
       - name: nix build
diff --git a/.github/workflows/secrets_scanner.yaml b/.github/workflows/secrets_scanner.yaml
index 6a0ac6f..ce093a9 100644
--- a/.github/workflows/secrets_scanner.yaml
+++ b/.github/workflows/secrets_scanner.yaml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
         with:
           fetch-depth: 0
       - name: TruffleHog OSS