diff --git a/requirements.txt b/requirements.txt
index b29d3623..0cfcb8e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ mkdocs-click
 Pygments>=2.4
 pymdown-extensions>=9.0
 mkdocs-rss-plugin
+mkdocs-glightbox