diff --git a/packaging/docker/ubuntu-14.04/Dockerfile b/packaging/docker/ubuntu-14.04/Dockerfile
index 84d1008..d5813a2 100644
--- a/packaging/docker/ubuntu-14.04/Dockerfile
+++ b/packaging/docker/ubuntu-14.04/Dockerfile
@@ -1,5 +1,7 @@
 FROM ubuntu:14.04
 MAINTAINER Vincent Llorens <vincent.llorens@cc.in2p3.fr>
+RUN apt-get update && apt-get install -y software-properties-common
+RUN add-apt-repository cloud-archive:liberty
 RUN apt-get update \
     && apt-get install -y build-essential \
                           debhelper \
diff --git a/setup.py b/setup.py
index fd6b2bd..f06a663 100644
--- a/setup.py
+++ b/setup.py
@@ -23,5 +23,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.8', 'setuptools>=17.1'],
+    setup_requires=['pbr>=1.8', 'setuptools'],
     pbr=True)