diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3a7648865..3ded4daa2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@
 SET(OPENSCENEGRAPH_MAJOR_VERSION 3)
 SET(OPENSCENEGRAPH_MINOR_VERSION 6)
 SET(OPENSCENEGRAPH_PATCH_VERSION 1)
-SET(OPENSCENEGRAPH_SOVERSION 156)
+SET(OPENSCENEGRAPH_SOVERSION 157)
 
 
 # set to 0 when not a release candidate, non zero means that any generated