diff --git a/requirements_dev.txt b/requirements_dev.txt
index 2eaf00d6..1dd73773 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -11,7 +11,7 @@ pytest-mock==3.14.0
 recommonmark==0.7.1
 requests==2.32.3
 requests-mock==1.12.1
-sphinx==7.1.2
+sphinx==8.1.3
 sphinx-rtd-theme==2.0.0
 tqdm==4.66.5
 websocket-client==1.8.0