diff --git a/setup.py b/setup.py
index 02da294c0f..10d2eb791c 100755
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@ install_requires = [
     "beautifulsoup4>=4.5.1",
     "html5lib>=0.999,<1",
     "Unidecode>=0.04.14",
-    "Willow>=0.4,<0.5",
+    "Willow>=1.0,<1.1",
     "requests>=2.11.1,<3.0",
 ]