diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,7 @@ try:
     import Cython
     from Cython.Distutils import build_ext
 
-    if Cython.__version__ < '0.18':
+    if Cython.__version__ < '0.28':
         raise ImportError()
 except ImportError:
     print(
Bump minimum cython to <I>