diff --git a/setup.py b/setup.py
index 52285d0..4c2ad2c 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,6 @@
       zip_safe=False,
       install_requires=[
         'setuptools',
-        'zope.cachedescriptors',
         'zope.component',
         'zope.interface',
         'zope.ramcache',