diff --git a/requirements-py2.txt b/requirements-py2.txt
index 517ec064..f8eacc12 100644
--- a/requirements-py2.txt
+++ b/requirements-py2.txt
@@ -8,3 +8,4 @@ six >= 1.7
 kazoo>=2.2.1
 python-etcd>=0.4.1
 click>=4.1
+prettytable>=0.7
diff --git a/requirements-py3.txt b/requirements-py3.txt
index b04a0f74..30b5ce96 100644
--- a/requirements-py3.txt
+++ b/requirements-py3.txt
@@ -8,3 +8,4 @@ six
 kazoo>=2.2.1
 python-etcd>=0.4.1
 click>=4.1
+prettytable>=0.7