diff --git a/Gemfile.lock b/Gemfile.lock
index 7eac84d..434f9d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -205,7 +205,7 @@ GEM
       unicode-display_width (~> 1.1, >= 1.1.1)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.4.0)
     unicorn (5.4.1)