diff --git a/CMakeLists.txt b/CMakeLists.txt
index 19a9760fff..465e00f1f4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,7 +29,7 @@ set( CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake_e
 
 set( SIGIL_MAJOR_VERSION 1 )
 set( SIGIL_MINOR_VERSION 5 )
-set( SIGIL_REVISION_VERSION 0 )
+set( SIGIL_REVISION_VERSION 1 )
 set( SIGIL_FULL_VERSION ${SIGIL_MAJOR_VERSION}.${SIGIL_MINOR_VERSION}.${SIGIL_REVISION_VERSION} )
 
 if( UNIX AND NOT APPLE )