diff --git a/requirements/requirements.in b/requirements/requirements.in
index 2ba5b1fa9a..ca8243a457 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -41,6 +41,7 @@ requests-futures==0.9.7
 service-identity==16.0.0
 shade==1.13.1
 slackclient==1.0.2
+tacacs_plus==0.1
 twilio==5.6.0
 uWSGI==2.0.14
 xmltodict==0.10.2
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 57b04b3e98..7cd3e15554 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -178,6 +178,7 @@ six==1.10.0               # via asgi-amqp, asgiref, autobahn, cliff, cryptograph
 slackclient==1.0.2
 stevedore==1.19.1         # via cliff, keystoneauth1, openstacksdk, osc-lib, oslo.config, python-designateclient, python-keystoneclient, python-magnumclient
 suds==0.4                 # via psphere
+tacacs_plus==0.1
 tempora==1.6.1            # via irc, jaraco.logging
 twilio==5.6.0
 twisted==16.6.0           # via daphne