diff --git a/.github/workflows/nix-non-x86.yml b/.github/workflows/nix-non-x86.yml
index 279e6c3..b80cf6a 100644
--- a/.github/workflows/nix-non-x86.yml
+++ b/.github/workflows/nix-non-x86.yml
@@ -21,12 +21,12 @@ jobs:
           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://static.188.92.12.49.clients.your-server.de/tee-pot
+            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
             sandbox = true
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://static.188.92.12.49.clients.your-server.de/
+          endpoint: https://attic.teepot.org/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
 
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 8981a37..3d850ea 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -22,12 +22,12 @@ jobs:
           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://static.188.92.12.49.clients.your-server.de/tee-pot
+            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
             sandbox = true
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://static.188.92.12.49.clients.your-server.de/
+          endpoint: https://attic.teepot.org/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
 
@@ -44,12 +44,12 @@ jobs:
           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://static.188.92.12.49.clients.your-server.de/tee-pot
+            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
             sandbox = true
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://static.188.92.12.49.clients.your-server.de/
+          endpoint: https://attic.teepot.org/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
 
@@ -84,12 +84,12 @@ jobs:
           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://static.188.92.12.49.clients.your-server.de/tee-pot
+            substituters = https://cache.nixos.org/ https://attic.teepot.org/tee-pot
             sandbox = true
       - name: Setup Attic cache
         uses: ryanccn/attic-action@v0
         with:
-          endpoint: https://static.188.92.12.49.clients.your-server.de/
+          endpoint: https://attic.teepot.org/
           cache: tee-pot
           token: ${{ secrets.ATTIC_TOKEN }}
 
diff --git a/Cargo.lock b/Cargo.lock
index 192acd9..cb453de 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2511,9 +2511,9 @@ dependencies = [
 
 [[package]]
 name = "io-uring"
-version = "0.7.9"
+version = "0.7.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d93587f37623a1a17d94ef2bc9ada592f5465fe7732084ab7beefabe5c77c0c4"
+checksum = "b86e202f00093dcba4275d4636b93ef9dd75d025ae560d2521b45ea28ab49013"
 dependencies = [
  "bitflags 2.9.1",
  "cfg-if",
diff --git a/flake.nix b/flake.nix
index 587718e..f3ec3fe 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "teepot";
 
   nixConfig = {
-    extra-substituters = [ "https://static.188.92.12.49.clients.your-server.de/tee-pot" ];
+    extra-substituters = [ "https://attic.teepot.org/tee-pot" ];
     extra-trusted-public-keys = [ "tee-pot:SS6HcrpG87S1M6HZGPsfo7d1xJccCGev7/tXc5+I4jg=" ];
   };