diff --git a/src/midi_Defs.h b/src/midi_Defs.h
index bc34fd8..f3be4c7 100644
--- a/src/midi_Defs.h
+++ b/src/midi_Defs.h
@@ -38,9 +38,9 @@ typedef uint8_t byte;
 
 BEGIN_MIDI_NAMESPACE
 
-#define MIDI_LIBRARY_VERSION        0x040400
-#define MIDI_LIBRARY_VERSION_MAJOR  4
-#define MIDI_LIBRARY_VERSION_MINOR  4
+#define MIDI_LIBRARY_VERSION        0x050000
+#define MIDI_LIBRARY_VERSION_MAJOR  5
+#define MIDI_LIBRARY_VERSION_MINOR  0
 #define MIDI_LIBRARY_VERSION_PATCH  0
 
 // -----------------------------------------------------------------------------