diff --git a/docker/base-tools/requirements.txt b/docker/base-tools/requirements.txt
index 3c7b635..63bf726 100644
--- a/docker/base-tools/requirements.txt
+++ b/docker/base-tools/requirements.txt
@@ -1,5 +1,6 @@
 Jinja2>=2.8  # BSD License (3 clause)
-python-etcd
-netifaces
 PyYAML>=3.1.0  # MIT
+dumb-init  # init system for containers
+netifaces
+python-etcd
 six>=1.9.0  # MIT