diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index c77db59e3..ce461fdbd 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -2,7 +2,7 @@ on: [push, pull_request]
 name: Nix
 jobs:
   check-zig-cache-hash:
-    runs-on: ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04-sm
+    runs-on: namespace-profile-ghostty-sm
     steps:
       - name: Checkout code
         uses: actions/checkout@v4