diff --git a/isolyzer/isolyzer.py b/isolyzer/isolyzer.py
index 0c265ba..4af45ec 100644
--- a/isolyzer/isolyzer.py
+++ b/isolyzer/isolyzer.py
@@ -44,7 +44,7 @@
 if len(scriptName) == 0:
     scriptName = 'isolyzer'
 
-__version__ = '1.4.0rc1'
+__version__ = '1.4.0'
 
 
 # Name space and XSD schema strings