diff --git a/requirements.txt b/requirements.txt
index 22ff08163..fb06bb183 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,7 @@ kombu!=4.0.2,>=4.6.1 # BSD
 mistral-lib>=1.2.0 # Apache-2.0
 networkx<2.3,>=1.10;python_version<'3.0'  # BSD
 networkx>=2.3;python_version>='3.4'  # BSD
+oauthlib>=0.6.2 # BSD
 oslo.concurrency>=3.26.0 # Apache-2.0
 oslo.config>=5.2.0 # Apache-2.0
 oslo.context>=2.20.0 # Apache-2.0