diff --git a/doc/requirements.txt b/doc/requirements.txt
index 9850c0d..19f46bb 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,5 +1,5 @@
 sphinx-rtd-theme==1.1.1
-sphinx-argparse==0.3.2
+sphinx-argparse==0.4.0
 sphinxcontrib-applehelp==1.0.2; python_version >= "3.5"
 sphinxcontrib-devhelp==1.0.2; python_version >= "3.5"
 sphinxcontrib-htmlhelp==2.0.0; python_version >= "3.5"