diff --git a/rtmidi.spec b/rtmidi.spec
index c93aaf9..f871843 100644
--- a/rtmidi.spec
+++ b/rtmidi.spec
@@ -1,5 +1,5 @@
 Name:          rtmidi
-Version:       3.0.0
+Version:       4.0.0
 Release:       1mamba
 Summary:       A set of C++ classes that provide a common API for realtime MIDI input/output
 Group:         System/Libraries
@@ -81,6 +81,9 @@ This package contains libraries and header files for developing applications tha
 %{_libdir}/pkgconfig/rtmidi.pc
 
 %changelog
+* Sun Apr 21 2019 Automatic Build System <autodist@mambasoft.it> 4.0.0-1mamba
+- automatic version update by autodist
+
 * Sun Mar 24 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 3.0.0-1mamba
 - update to 3.0.0