diff --git a/documentation-requirements.txt b/documentation-requirements.txt
index 98e5dc6..06ecf1d 100644
--- a/documentation-requirements.txt
+++ b/documentation-requirements.txt
@@ -7,7 +7,7 @@ sphinx-jinja2-compat==0.4.1
 sphinx-prompt==1.10.2
 sphinx-rtd-theme==3.1.0
 sphinx-tabs==3.5.0
-sphinx-toolbox==4.3.0
+sphinx-toolbox==4.3.1
 sphinxcontrib-applehelp==2.0.0
 sphinxcontrib-devhelp==2.0.0
 sphinxcontrib-htmlhelp==2.1.0