diff --git a/CMakeLists.txt b/CMakeLists.txt
index 57974a9f9..19a6922f3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,8 +30,8 @@ PROJECT(OpenSceneGraph)
 
 SET(OPENSCENEGRAPH_MAJOR_VERSION 2)
 SET(OPENSCENEGRAPH_MINOR_VERSION 9)
-SET(OPENSCENEGRAPH_PATCH_VERSION 3)
-SET(OPENSCENEGRAPH_SOVERSION 58)
+SET(OPENSCENEGRAPH_PATCH_VERSION 4)
+SET(OPENSCENEGRAPH_SOVERSION 59)
 
 # set to 0 when not a release candidate, non zero means that any generated 
 # svn tags will be treated as release candidates of given number
diff --git a/include/osg/Version b/include/osg/Version
index 33498d128..8df645df9 100644
--- a/include/osg/Version
+++ b/include/osg/Version
@@ -21,8 +21,8 @@ extern "C" {
 
 #define OPENSCENEGRAPH_MAJOR_VERSION    2
 #define OPENSCENEGRAPH_MINOR_VERSION    9
-#define OPENSCENEGRAPH_PATCH_VERSION    3
-#define OPENSCENEGRAPH_SOVERSION        58
+#define OPENSCENEGRAPH_PATCH_VERSION    4
+#define OPENSCENEGRAPH_SOVERSION        59
 
 /**
   * osgGetVersion() returns the library version number.