diff --git a/docs/requirements.txt b/docs/requirements.txt
index a01041c..2d8c4af 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,3 +4,4 @@ backoff>=2.1.2
 pydantic>=2.0.3
 yarl>=1.7.0
 websockets>=10.0
+sphinx_rtd_theme