diff --git a/roles/docker/defaults/main.yml b/roles/docker/defaults/main.yml
index 64751e1..f5a54e7 100644
--- a/roles/docker/defaults/main.yml
+++ b/roles/docker/defaults/main.yml
@@ -167,7 +167,7 @@ services:
   pinafore:
     file: pinafore.yml
     domain: "pinafore.{{ base_domain }}"
-    version: 2.4.0
+    version: v2.4.0
 
   membersystem:
     file: membersystem.yml