diff --git a/rmw/package.xml b/rmw/package.xml
index 3876b113..6ffe3908 100644
--- a/rmw/package.xml
+++ b/rmw/package.xml
@@ -2,7 +2,7 @@
 <?xml-model href="http://download.ros.org/schema/package_format2.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
 <package format="2">
   <name>rmw</name>
-  <version>0.0.3</version>
+  <version>0.4.0</version>
   <description>Contains the ROS middleware API.</description>
   <maintainer email="dthomas@osrfoundation.org">Dirk Thomas</maintainer>
   <maintainer email="william@osrfoundation.org">William Woodall</maintainer>
diff --git a/rmw_implementation_cmake/package.xml b/rmw_implementation_cmake/package.xml
index 084fae73..22ff2e2a 100644
--- a/rmw_implementation_cmake/package.xml
+++ b/rmw_implementation_cmake/package.xml
@@ -2,7 +2,7 @@
 <?xml-model href="http://download.ros.org/schema/package_format2.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
 <package format="2">
   <name>rmw_implementation_cmake</name>
-  <version>0.0.3</version>
+  <version>0.4.0</version>
   <description>
     CMake functions which can discover and enumerate available implementations.
   </description>