diff --git a/stack.sh b/stack.sh
index 967dd7c..4c378ff 100755
--- a/stack.sh
+++ b/stack.sh
@@ -371,7 +371,7 @@ apt_get update
 apt_get install `cat $FILES/apts/* | cut -d\# -f1 | grep -Ev "mysql-server|rabbitmq-server|memcached"`
 
 # install python requirements
-sudo PIP_DOWNLOAD_CACHE=/var/cache/pip pip install `cat $FILES/pips/*`
+sudo PIP_DOWNLOAD_CACHE=/var/cache/pip pip install --use-mirrors `cat $FILES/pips/*`
 
 # git clone only if directory doesn't exist already.  Since ``DEST`` might not
 # be owned by the installation user, we create the directory and change the