diff --git a/glances/__init__.py b/glances/__init__.py
index <HASH>..<HASH> 100644
--- a/glances/__init__.py
+++ b/glances/__init__.py
@@ -27,7 +27,9 @@ import signal
 import sys
 
 # Global name
-__version__ = '3.1.6_DEVELOP'
+# Version should start and end with a numerical char
+# See https://packaging.python.org/specifications/core-metadata/#version
+__version__ = '3.1.6_b1'
 __author__ = 'Nicolas Hennion <nicolas@nicolargo.com>'
 __license__ = 'LGPLv3'
Publish develop branch to test.pypi.org correct version