diff --git a/CMakeLists.txt b/CMakeLists.txt
index feb87a911..5de8e493a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,7 +54,7 @@ PROJECT(OpenSceneGraph)
 SET(OPENSCENEGRAPH_MAJOR_VERSION 3)
 SET(OPENSCENEGRAPH_MINOR_VERSION 4)
 SET(OPENSCENEGRAPH_PATCH_VERSION 1)
-SET(OPENSCENEGRAPH_SOVERSION 130)
+SET(OPENSCENEGRAPH_SOVERSION 131)
 
 # set to 0 when not a release candidate, non zero means that any generated
 # git tags will be treated as release candidates of given number