diff --git a/pyneb/version.py b/pyneb/version.py
index c7a7454..a058468 100644
--- a/pyneb/version.py
+++ b/pyneb/version.py
@@ -1,2 +1,2 @@
 # PyNeb version
-__version__ = '1.1.21b1'
+__version__ = '1.1.21'