diff --git a/setup.py b/setup.py
index 9b1c957..b7cf373 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
 EMAIL = 'zchen@cse.msstate.edu'
 AUTHOR = 'XGraphing'
 REQUIRES_PYTHON = '>=3.6.0'
-VERSION = '0.0.20'
+VERSION = '0.0.21'
 
 # What packages are required for this module to be executed?
 # TODO cosasi could be remove if no longer using our customized cosasi package