diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 97dc20a0ace484808958a9d974644394935331df..474ce1e9c5a365e68b75611747f31c83ba1bf2a3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,6 +2,6 @@ stages:
 - build
 
 nix-build:
-  stage: build 
-  image: nixos:20.03
+  stage: build
+  tags: [nix]
   script: nix-build