diff --git a/docs/requirements.txt b/docs/requirements.txt
index 4f20678..7064fb8 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -32,4 +32,4 @@ sphinx-sitemap==2.9.0
 rst2html==2020.7.4
 vale==3.13.0.0
 
-sphinxcontrib-mermaid==2.0.2
+sphinxcontrib-mermaid==2.1.0