diff --git a/.woodpecker.yml b/.woodpecker.yml
index e93dd3c..c9ff78d 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -28,6 +28,7 @@ steps:
     image: python:3.11-bookworm
     group: test
     commands:
+      - pip3 install -e .[test]
       - echo "postfix postfix/mailname string example.org" | debconf-set-selections
       - echo "postfix postfix/main_mailer_type string 'Local only'" | debconf-set-selections
       - apt update; apt install --yes schleuder schleuder-cli postfix patch