diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 3cf4556..5aab4c8 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -148,4 +148,4 @@ DEPENDENCIES
   webrick
 
 BUNDLED WITH
-   2.3.13
+   2.5.6