diff --git a/.drone.yml b/.drone.yml
index 4e6137a..c68bb27 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -10,7 +10,7 @@ steps:
 - name: Build Opytex 2020-2021
   image: python:3.8-alpine
   commands:
-  - apk add --no-cache git imagemagick
+  - apk add --no-cache git imagemagick-dev imagemagick
   - cd ..
   - git init .
   - git remote add origin https://git.opytex.org/lafrite/site_opytex.git