diff --git a/.drone.yml b/.drone.yml
index ab582dc..dffbf66 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -1,4 +1,3 @@
----
 kind: pipeline
 name: python-latest
 
@@ -21,7 +20,7 @@ steps:
       - source: PYPI_PASSWORD
         target: TWINE_PASSWORD
     when:
-      event: tag
+      event: [ tag ]
   - name: notify
     image: drillster/drone-email
     host: $SMTP_HOST