diff --git a/docs/requirements.txt b/docs/requirements.txt
index 5401db80..176716d3 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -69,3 +69,4 @@ urllib3==2.0.3
     # via requests
 zipp==3.15.0
     # via importlib-metadata
+sphinx-rtd-theme==1.2.2