diff --git a/sphinx-doc/requirements_sphinx.txt b/sphinx-doc/requirements_sphinx.txt
index ceb19f14fe5a3198c0b7e5c60ebbbf1b358e6a85..ff5562af7a2b0d1c4ddcbc807decd0c621a6d3da 100644
--- a/sphinx-doc/requirements_sphinx.txt
+++ b/sphinx-doc/requirements_sphinx.txt
@@ -20,7 +20,7 @@ Jinja2==2.11.2
 joblib==0.14.1
 kiwisolver==1.1.0
 llvmlite==0.34.0
-Markdown==3.2.2
+Markdown==3.3
 MarkupSafe==1.1.1
 matplotlib==3.3.2
 mlxtend==0.17.2