diff --git a/.drone.yml b/.drone.yml
index d601812..629a6ed 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,6 +7,7 @@ steps:
 - name: build
   image: python
   commands:
+  - python -m pip install build
   - python -m build
 - name: publish
   image: plugins/pypi