diff --git a/Gemfile.lock b/Gemfile.lock
index c6a2ee8..501397a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,7 +84,7 @@ GEM
     sqlite3 (1.3.13)
     thread_safe (0.3.6)
     trollop (2.1.2)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     xcinvoke (0.3.0)
       liferaft (~> 0.0.6)