diff --git a/ruby/GrabzItDemo/Gemfile.lock b/ruby/GrabzItDemo/Gemfile.lock
index cb2a7c9..1245374 100644
--- a/ruby/GrabzItDemo/Gemfile.lock
+++ b/ruby/GrabzItDemo/Gemfile.lock
@@ -126,7 +126,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (1.4.1)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     tzinfo-data (1.2019.1)
       tzinfo (>= 1.0.0)