diff --git a/CMakeLists.txt b/CMakeLists.txt
index 649f521103..e3ec73ec05 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,7 +44,7 @@ set(OPENEXR_VERSION_API "${OpenEXR_VERSION_MAJOR}_${OpenEXR_VERSION_MINOR}")
 #   3. API changed:   CURRENT+1.0.0
 #
 set(OPENEXR_LIBTOOL_CURRENT 30)
-set(OPENEXR_LIBTOOL_REVISION 12)
+set(OPENEXR_LIBTOOL_REVISION 13)
 set(OPENEXR_LIBTOOL_AGE 1)
 set(OPENEXR_LIB_VERSION "${OPENEXR_LIBTOOL_CURRENT}.${OPENEXR_LIBTOOL_REVISION}.${OPENEXR_LIBTOOL_AGE}")
 set(OPENEXR_LIB_SOVERSION ${OPENEXR_LIBTOOL_CURRENT})