diff --git a/requirements b/requirements
index bc87d11..fa899fd 100644
--- a/requirements
+++ b/requirements
@@ -2,7 +2,7 @@ django>=1.5,< 1.6
 south
 django-crispy-forms
 django-sekizai
-https://github.com/hzdg/django-cas/archive/d1068fe06ca922084fad8eb0db8bcd3021fb2b47.zip
+https://bitbucket.org/cpcc/django-cas/get/47d19f3.tar.gz
 django-admin-tools>=0.5,<0.6
 http://pybrary.net/pyPdf/pyPdf-1.13.tar.gz
 flup