diff --git a/build.sbt b/build.sbt
index 5b54b6d..8620e5a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -35,7 +35,7 @@ lazy val commonSettings = Seq(
   ),
 )
 
-val previousVersion: Option[String] = None
+val previousVersion: Option[String] = Some("11.0.0-M1")
 
 lazy val `play-mailer` = (project in file("play-mailer"))
   .enablePlugins(Common)