diff --git a/Gemfile.lock b/Gemfile.lock
index fe6ad7a6..1981ac6b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -316,7 +316,7 @@ GEM
     thor (0.19.4)
     thread_safe (0.3.6)
     tilt (2.0.7)
-    tzinfo (1.2.3)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)