diff --git a/development-requirements.txt b/development-requirements.txt
index 47f8efd..9e3fa41 100644
--- a/development-requirements.txt
+++ b/development-requirements.txt
@@ -18,7 +18,7 @@ sphinx-prompt==1.9.0
 sphinxext-remoteliteralinclude==0.5.0
 sphinx-rtd-theme==3.0.2
 sphinx-tabs==3.4.7
-sphinx-toolbox==3.0.0
+sphinx-toolbox==4.0.0
 sphinx==8.2.3
 sphinxcontrib-applehelp==2.0.0
 sphinxcontrib-devhelp==2.0.0