diff --git a/requirements.txt b/requirements.txt
index a827efb3..66b059f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,10 @@
 boto
-mock
-dnspython3
 psycopg2>=2.6.1
 PyYAML
 requests
-six
+six >= 1.7
 kazoo>=2.2.1
-python-etcd==0.4.2
+python-etcd==0.4.3
 click>=4.1
 prettytable>=0.7
 tzlocal