diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5d908aab..550f7b932 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,8 +16,8 @@ PROJECT(OpenSceneGraph)
 
 SET(OPENSCENEGRAPH_MAJOR_VERSION 2)
 SET(OPENSCENEGRAPH_MINOR_VERSION 1)
-SET(OPENSCENEGRAPH_PATCH_VERSION 3)
-SET(OPENSCENEGRAPH_SOVERSION 14)
+SET(OPENSCENEGRAPH_PATCH_VERSION 4)
+SET(OPENSCENEGRAPH_SOVERSION 15)
 
 SET(OPENSCENEGRAPH_VERSION ${OPENSCENEGRAPH_MAJOR_VERSION}.${OPENSCENEGRAPH_MINOR_VERSION}.${OPENSCENEGRAPH_PATCH_VERSION})
 
diff --git a/include/osg/Version b/include/osg/Version
index 3d3d2a3d6..6cc262261 100644
--- a/include/osg/Version
+++ b/include/osg/Version
@@ -20,7 +20,7 @@ extern "C" {
 
 #define OSG_VERSION_MAJOR 2
 #define OSG_VERSION_MINOR 1
-#define OSG_VERSION_PATCH 3
+#define OSG_VERSION_PATCH 4
 
 #define OSG_VERSION_RELEASE OSG_VERSION_PATCH
 #define OSG_VERSION_REVISION 0