diff --git a/.drone.yml b/.drone.yml
index 402d436..9b020d9 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -5,4 +5,5 @@ steps:
   - name: test
     image: "xena/lua:5.3"
     commands:
+      - luarocks-5.3 install --only-deps ./ln-0.2.0-1.rockspec
       - busted-5.3