diff --git a/build/update.site/pom.xml b/build/update.site/pom.xml
index 5514c75..c544215 100644
--- a/build/update.site/pom.xml
+++ b/build/update.site/pom.xml
@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>dltk.build.all</artifactId>
-		<version>5.8.1-SNAPSHOT</version>
+		<version>5.9.0-SNAPSHOT</version>
 		<relativePath>../../pom.xml</relativePath>
 		<groupId>org.eclipse.dltk</groupId>
 	</parent>
diff --git a/pom.xml b/pom.xml
index 66ec068..95a3dd4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
 
 	<groupId>org.eclipse.dltk</groupId>
 	<artifactId>dltk.build.all</artifactId>
-	<version>5.8.1-SNAPSHOT</version>
+	<version>5.9.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<url>https://eclipse.org/dltk</url>
 	<prerequisites>