diff --git a/Gemfile.lock b/Gemfile.lock
index e34da0a..618f486 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -330,7 +330,7 @@ GEM
     thread_safe (0.3.6)
     timecop (0.9.1)
     traceable (1.5.0)
-    tzinfo (1.2.3)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.3.0)
     warden (1.2.7)