diff --git a/requirements.txt b/requirements.txt
index ed97ae6..d0d723a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 --extra-index-url https://pypi.python.org/simple/
-Cython==0.23.5
+Cython>=0.24
 Sphinx>=1.2.0
 ipython>=3.0.0
 breathe>=4.0.0