diff --git a/.drone.yml b/.drone.yml
index cc32e0b..2874bbe 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,6 +9,8 @@ steps:
     commands:
       - mkdir -p ~/.config/nixpkgs
       - echo '{ allowUnfree = true; }' > ~/.config/nixpkgs/config.nix
+      - nix-env -iA cachix -f https://cachix.org/api/v1/install
+      - cachix use xe
       - cd book && nix-build
       - cp $(readlink result) /lewa/result/docker.tgz
     volumes: