diff --git a/docs/requirements.txt b/docs/requirements.txt
index 6ca9e0c..e06844f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -8,4 +8,4 @@ idna==2.9
 multidict==4.7.5
 websockets==8.1
 yarl==1.4.2
-sphinx==2.4.3
+sphinx==5.1.1