diff --git a/pymata_aio/private_constants.py b/pymata_aio/private_constants.py
index 93b7684..9072f41 100644
--- a/pymata_aio/private_constants.py
+++ b/pymata_aio/private_constants.py
@@ -70,7 +70,7 @@ class PrivateConstants:
     SYSEX_REALTIME = 0x7F  # MIDI Reserved for realtime messages
 
     # reserved for PyMata
-    PYMATA_VERSION = "2.28"
+    PYMATA_VERSION = "5.1"
 
     # each byte represents a digital port
     #  and its value contains the current port settings