diff --git a/i18n-docu/requirements.txt b/i18n-docu/requirements.txt
index 74b532c..42ac3a9 100644
--- a/i18n-docu/requirements.txt
+++ b/i18n-docu/requirements.txt
@@ -26,6 +26,7 @@ mergedeep==1.3.4
 mkdocs==1.6.1
 mkdocs-awesome-pages-plugin==2.10.1
 mkdocs-get-deps==0.2.0
+mkdocs-glightbox==0.4.0
 mkdocs-material==9.6.14
 mkdocs-material-extensions==1.3.1
 mkdocs-minify-plugin==0.8.0