diff --git a/README.md b/README.md
index 846aef51c116feea4b494038c9e5b52b2290029e..a1af05ef62a970e0cba844cfa900fd640f3cdc72 100644
--- a/README.md
+++ b/README.md
@@ -39,4 +39,5 @@ python3 manage.py runserver
 - KoReader: https://github.com/koreader/koreader/ (AGPL 3.0)
 - KoReader Sync Server: https://github.com/koreader/koreader-sync-server/ (AGPL 3.0)
 - PDF.js: https://mozilla.github.io/pdf.js/ (Apache 2.0)
+- JSZip: https://stuk.github.io/jszip/ (MIT or GPLv3)
 - EPUB.js: https://github.com/futurepress/epub.js (Copyright)