diff --git a/CMakeLists.txt b/CMakeLists.txt
index e288e01e8..b869aec53 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -139,7 +139,7 @@ if(LibKScreen_FOUND)
     target_link_libraries(okularcore ${LibKScreen_LIBRARY})
 endif(LibKScreen_FOUND)
 
-set_target_properties(okularcore PROPERTIES VERSION 3.0.0 SOVERSION 3 )
+set_target_properties(okularcore PROPERTIES VERSION 4.0.0 SOVERSION 4 )
 
 install(TARGETS okularcore ${INSTALL_TARGETS_DEFAULT_ARGS} )