diff --git a/.drone.yml b/.drone.yml
index 6320f79..7c8a414 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -12,7 +12,7 @@ steps:
     image: python:3-slim
     commands:
       - apt-get update
-      - apt-get install --no-install-recommends make
+      - apt-get install -y --no-install-recommends make shellcheck
       - pip install docker-compose
       - make all