diff --git a/.gitea/workflows/build-image.yaml b/.gitea/workflows/build-image.yaml
index e8eb840..96ce72c 100644
--- a/.gitea/workflows/build-image.yaml
+++ b/.gitea/workflows/build-image.yaml
@@ -21,7 +21,7 @@ env:
 jobs:
   # Build job
   build:
-    runs-on: ubuntu-latest
+    runs-on: cth-ubuntu-latest
     steps:
       - name: Check out repository
         uses: https://github.com/actions/checkout@v4