diff --git a/setup.py b/setup.py
index b8f36d12559f05a47ef57dd06efd4761e3b3ad9a..bd94ea7e7e387709684adbc43a5753f1395df2f7 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ setup(name="loo.py",
           ],
 
       install_requires=[
-          "pytools>=2017.6",
+          "pytools>=2018.1",
           "pymbolic>=2016.2",
           "genpy>=2016.1.2",
           "cgen>=2016.1",