diff --git a/build.sbt b/build.sbt
index e94d129..6162103 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ import java.util.jar._
 crossScalaVersions in ThisBuild := Seq("2.9.1")
 
 // doing "in ThisBuild" makes this default setting for all projects in this build
-version in ThisBuild := "5.19-SNAPSHOT"
+version in ThisBuild := "5.20-SNAPSHOT"
 
 organization in ThisBuild := "com.gu"