diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 447368f..c768ee1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,6 +12,9 @@ workflow:
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
 
+variables:
+  NIX_CONFIG: extra-experimental-features = nix-command flakes
+
 deploy:site:
   stage: build
   image: nixos/nix:2.21.0