diff --git a/build.sbt b/build.sbt
index 364eed2ff..0ba5c9ab4 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,7 +1,7 @@
 import Dependencies._
 import Util._
 
-def baseVersion: String = "0.1.0-M4"
+def baseVersion: String = "0.1.0-M5"
 def internalPath   = file("internal")
 
 def commonSettings: Seq[Setting[_]] = Seq(