Index: django-simple-captcha-0.4.2/setup.py
===================================================================
--- django-simple-captcha-0.4.2.orig/setup.py	2014-07-02 14:39:05.079674916 +1000
+++ django-simple-captcha-0.4.2/setup.py	2014-07-02 14:40:00.182399231 +1000
@@ -4,12 +4,10 @@
 install_requires = [
     'setuptools',
     'six >=1.1.0',
-    'Django >= 1.4'
+    'Django >= 1.4',
+    'Pillow >= 2.2.2',
 ]
 
-if pillow_required():
-    install_requires.append('Pillow >=2.2.2')
-
 setup(
     name='django-simple-captcha',
     version=get_captcha_version(),
