diff --git a/requirements_docs.txt b/requirements_docs.txt
index cf71401be..828566b8a 100644
--- a/requirements_docs.txt
+++ b/requirements_docs.txt
@@ -1,4 +1,4 @@
 Sphinx==4.4.0
 pyansys-sphinx-theme==0.2.3
 sphinx-copybutton==0.5.0
-sphinx_toolbox==2.17.0
+sphinx_toolbox==2.18.0