diff --git a/Gemfile.lock b/Gemfile.lock
index 895046e..4cd8928 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,7 @@ GEM
     test-unit (3.4.4)
       power_assert
     thread_safe (0.3.6)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
 
 PLATFORMS