diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4d5d56e..ff42dab 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,6 @@
-image: nixpkgs/nix-flakes
+default:
+  image:
+    name: registry.uniworx.de/uniworx/containers/nix-attic:latest
 
 workflow:
   rules: