diff --git a/rails/Gemfile.lock b/rails/Gemfile.lock
index 60a2c09..0e3664a 100644
--- a/rails/Gemfile.lock
+++ b/rails/Gemfile.lock
@@ -246,7 +246,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.6.0)
     web-console (4.0.1)