diff --git a/requirements.txt b/requirements.txt
index c57f4e87631..2d5352fc8af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ mkdocs-glightbox>=0.3,<0.4
 mkdocs-macros-plugin>=0.5,<1.1
 mkdocs-minify-plugin<0.7
 mkdocs-redirects<1.3
-mkdocs-rss-plugin>=1.4,<1.8
+mkdocs-rss-plugin>=1.4,<1.9
 
 # social plugin requirements
 CairoSVG>=2.5,<3