diff --git a/Gemfile.lock b/Gemfile.lock
index 20a58da83..f51696382 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/kjvarga/sitemap_generator.git
-  revision: 2b4fc4b138e70b675a1eaef62f45d6024f1cb705
+  revision: 747988328566c84b0b8aa1ab898ababc371284dc
   branch: master
   specs:
     sitemap_generator (6.4.0)