diff --git a/pymycobot/__init__.py b/pymycobot/__init__.py
index 7df42c5..fc53944 100644
--- a/pymycobot/__init__.py
+++ b/pymycobot/__init__.py
@@ -30,7 +30,7 @@
     "Mira"
 ]
 
-__version__ = "2.9.0"
+__version__ = "2.9.1"
 __author__ = "Elephantrobotics"
 __email__ = "weiquan.xu@elephantrobotics.com"
 __git_url__ = "https://github.com/elephantrobotics/pymycobot"