diff --git a/setup.py b/setup.py
index fa3847ff2..2211ddbef 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@ def read(fname):
 
 install_requires = [
     'setuptools',
-    'easy-thumbnails',
+    'easy-thumbnails>=1.0-alpha-17',
     'django-mptt>=0.2.1',
     'django_polymorphic',
 ]