diff --git a/setup.py b/setup.py
index 6964fd9c15848efc95f788cd3b4c7476e636abe6..8dc4be73b4655077c2cb6c8eed126e0e25e9d9ac 100755
--- a/setup.py
+++ b/setup.py
@@ -47,7 +47,7 @@ from setuptools import find_packages, setup
 
 MAJOR = 0
 MINOR = 4
-MICRO = 0
+MICRO = 1
 PRE = ""  # e.g. rc0, alpha.1, 0.beta-23
 ISRELEASED = False