diff --git a/Start Ruby on Rails from scratch/Gemfile.lock b/Start Ruby on Rails from scratch/Gemfile.lock
index dce9468..c425e02 100644
--- a/Start Ruby on Rails from scratch/Gemfile.lock	
+++ b/Start Ruby on Rails from scratch/Gemfile.lock	
@@ -157,7 +157,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.0.1)
       actionview (>= 6.0.0)