diff --git a/.gitignore b/.gitignore
index e7b4f216..7d137142 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@ out/
 log/*.log
 tmp/**
 node_modules/
+package-lock.json
 .sass-cache
 css/reveal.min.css
-js/reveal.min.js
\ No newline at end of file
+js/reveal.min.js