diff --git a/Gemfile.lock b/Gemfile.lock
index ee425cb..41f0003 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     json (2.1.0)
-    rdoc (6.0.4)
+    rdoc (6.3.2)
 
 PLATFORMS
   ruby