diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c7e98785..0584fb9a6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -63,7 +63,7 @@ find_package(Qt5 ${QT_REQUIRED_VERSION} CONFIG REQUIRED DBus Network Test Widget
 set(LIBGRAVATAR_VERSION_LIB "5.3.40")
 set(MAILCOMMON_LIB_VERSION_LIB "5.3.42")
 set(KDEPIM_APPS_LIB_VERSION_LIB "5.3.40")
-set(MESSAGELIB_LIB_VERSION_LIB "5.3.55")
+set(MESSAGELIB_LIB_VERSION_LIB "5.3.56")
 set(LIBKLEO_LIB_VERSION_LIB "5.3.44")
 set(PIMCOMMON_LIB_VERSION_LIB "5.3.49")
 set(LIBKDEPIM_LIB_VERSION_LIB "5.3.42")