diff --git a/Gemfile.lock b/Gemfile.lock
index 0e80eb7..2ea010d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -131,7 +131,7 @@ GEM
       ethon (>= 0.9.0)
     typogruby (1.0.18)
       rubypants
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)