diff --git a/setup.py b/setup.py
index f012e0f67073c50c612bd7b97377dc08cc37c847..cea5c8513d9c6b94345bc5ed95896021aea2fd42 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ ez_setup.use_setuptools()
 from setuptools import setup
 
 setup(name="pymbolic",
-      version="0.90",
+      version="0.91",
       description="A package for symbolic computation",
       long_description="""
       Pymbolic is a small symbolic manipulation library. Two things set it apart