diff --git a/setup.py b/setup.py
index fdbe37c81..cdc503dd8 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ extras_require = {
     'docs': [
         'sphinx==4.4.0',
         'sphinxcontrib_trio==1.1.2',
-        'sphinxcontrib-websupport==1.2.6',
+        'sphinxcontrib-websupport==1.2.4',
         'typing-extensions>=4.3,<5',
         'sphinx-inline-tabs==2023.4.21',
     ],