diff --git a/docs/requirements.txt b/docs/requirements.txt
index ab1e2d0..3a5372f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -42,7 +42,7 @@ recommonmark==0.6.0
 requests==2.33.0
 six==1.15.0
 snowballstemmer==2.0.0
-soupsieve==2.8.4
+soupsieve==2.9
 Sphinx==3.2.1
 sphinxcontrib-applehelp==1.0.2
 sphinxcontrib-devhelp==1.0.2