diff --git a/setup.py b/setup.py
index ee5ff950..dc8f21ca 100644
--- a/setup.py
+++ b/setup.py
@@ -7,9 +7,9 @@
 
 MAJOR = 1
 MINOR = 3
-MICRO = 0
+MICRO = 1
 
-IS_RELEASED = True
+IS_RELEASED = False
 
 VERSION = '%d.%d.%d' % (MAJOR, MINOR, MICRO)