diff --git a/.drone.yml b/.drone.yml
index 93a503d..f16e97a 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -4,7 +4,7 @@ type: docker
 
 steps:
   - name: lint
-    image: python:slim
+    image: python:3.8-slim
     commands:
       - pip install poetry
       - poetry install