diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ffb4fbf..29fa38a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,4 +4,5 @@ build:
   stage: build
   script:
     - nix-channel --add https://github.com/hexchen/nixpkgs/archive/hexchen-20.09.tar.gz nixos && nix-channel --update && nix-env -i git
+    - nix-instantiate -I nixpkgs=https://github.com/hexchen/nixpkgs/archive/hexchen-20.09.tar.gz -A deploy.all
     - nix-build -A deploy.all -I nixpkgs=https://github.com/hexchen/nixpkgs/archive/hexchen-20.09.tar.gz