diff --git a/requirements/requirements_doc.txt b/requirements/requirements_doc.txt
index eabf6c3ea..058e28454 100644
--- a/requirements/requirements_doc.txt
+++ b/requirements/requirements_doc.txt
@@ -3,7 +3,7 @@ numpydoc==1.5.0
 ansys-sphinx-theme==0.7.0
 sphinx-copybutton==0.5
 apispec==6.0.2
-sphinxcontrib-httpdomain==1.8.0
+sphinxcontrib-httpdomain==1.8.1
 sphinxcontrib-globalsubs==0.1.0
 sphinxnotes-strike==1.2
 sphinx-autodoc-typehints==1.19.5
\ No newline at end of file