diff --git a/setup.py b/setup.py
index 67cc2ac..2e7b3e2 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 sys.path.insert(0, join(split(abspath(__file__))[0], 'lib'))
 
 setup(name='hivclustering',
-      version="1.5.2",
+      version="1.5.3",
       description='HIV molecular clustering tools',
       author='Sergei Kosakovsky Pond',
       author_email='spond@ucsd.edu',