diff --git a/test-requirements.txt b/test-requirements.txt
index 8fa630a..728f8ad 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,5 +6,5 @@ typing_extensions==4.12.2
 beartype==0.19.0
 
 # docs
-sphinx==8.1.0
+sphinx==7.4.7
 furo==2024.5.6