diff --git a/requirements.txt b/requirements.txt
index 379d3c08d2..2ebca50bc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ beautifulsoup
 beautifulsoup4
 feedparser
 requests
-sympy
+http://sympy.googlecode.com/files/sympy-0.7.1.tar.gz
 newrelic
 glob2
 pymongo