diff --git a/build.sbt b/build.sbt
index c2b30084f5..08466fc993 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ import Dependencies._
 
 organization in ThisBuild          := "net.liftweb"
 
-version in ThisBuild               := "3.1-SNAPSHOT"
+version in ThisBuild :=  "3.1.0-M1"
 
 homepage in ThisBuild              := Some(url("http://www.liftweb.net"))