diff --git a/etc/requirements.txt b/etc/requirements.txt
index e2e3237e..fb4a96e6 100644
--- a/etc/requirements.txt
+++ b/etc/requirements.txt
@@ -8,7 +8,7 @@ blist==1.3.4
 
 # Scientific Libraries
 
-pytz==2012h
+pytz==2012j
 numpy==1.6.2
 
 pandas==0.10.0