diff --git a/setup.py b/setup.py
index faa108e52fe5d5706577c1b0bdec485547961676..f0bb855421224ed9dce8301327d23229a125beb6 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@ setup(name="loopy",
         ],
 
       install_requires=[
-          "pyopencl>=2011.1", "pymbolic", "cgen", "islpy>=2011.3"
+          "pyopencl>=2011.1", "pymbolic", "cgen", "islpy"
           ],
 
       author="Andreas Kloeckner",