diff --git a/prereqs/pips/app_requirements.txt b/prereqs/pips/app_requirements.txt
index c70e7a01f5..49ca2ec9cc 100644
--- a/prereqs/pips/app_requirements.txt
+++ b/prereqs/pips/app_requirements.txt
@@ -73,7 +73,7 @@ blockdiag==3.0.0
 docutils==0.21.2
 Jinja2==3.1.6
 Pygments==2.18.0
-Sphinx==8.1.3
+Sphinx==8.2.3
 sphinxcontrib-blockdiag==3.0.0
 sphinx_autodoc_typehints==3.0.1
 #