diff --git a/etc/drone/docker-compose.yml b/etc/drone/docker-compose.yml
index fbcf6b7..938d071 100644
--- a/etc/drone/docker-compose.yml
+++ b/etc/drone/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: '3.8'
 
 services:
   drone-server: