diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 86218efd07..c470456a5f 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -110,6 +110,7 @@ rsa==4.0                  # via google-auth
 ruamel.yaml.clib==0.2.0   # via ruamel.yaml
 ruamel.yaml==0.16.5       # via openshift
 schedule==0.6.0
+service-identity==18.1.0  # via twisted
 six==1.13.0               # via ansible-runner, asgi-amqp, asgiref, autobahn, automat, cryptography, django-extensions, google-auth, isodate, jaraco.classes, jaraco.collections, jaraco.itertools, jaraco.logging, jaraco.text, jsonschema, kubernetes, openshift, pygerduty, pyhamcrest, pyrad, pyrsistent, python-dateutil, python-memcached, slackclient, social-auth-app-django, social-auth-core, tacacs-plus, tempora, twilio, txaio, websocket-client
 slackclient==1.1.2
 smmap2==2.0.5             # via gitdb2