diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index f9ffdf9..dda7ff1 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -75,7 +75,7 @@
 else(NOT USE_SHARED_POLARSSL_LIBRARY)
 
 add_library(polarssl SHARED ${src})
-set_target_properties(polarssl PROPERTIES VERSION 1.3.0 SOVERSION 3)
+set_target_properties(polarssl PROPERTIES VERSION 1.3.0 SOVERSION 4)
 
 endif(NOT USE_SHARED_POLARSSL_LIBRARY)