diff --git a/scripts/install/install.ubuntu.sh b/scripts/install/install.ubuntu.sh
index 58d0e521d..e7d2b70d7 100755
--- a/scripts/install/install.ubuntu.sh
+++ b/scripts/install/install.ubuntu.sh
@@ -54,7 +54,7 @@ apt-get install openssh-server net-tools nginx redis-server build-essential open
 apt-get install python python-dev python-pip python-lxml python-cheetah python-simplejson
 apt-get install libltdl7 libpcre3 libpcre++-dev libxml2-dev libxslt-dev libltdl-dev
 
-pip install redis gunicorn celery
+pip install 'redis==2.10.6' gunicorn celery
 
 # install kontext requirements
 pip install -r ${INSTALL_DIR}/requirements.txt