diff --git a/Gemfile.lock b/Gemfile.lock
index 7e05eb95..f54b8ba6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -279,7 +279,7 @@ GEM
     thread_safe (0.3.6)
     tilt (2.0.10)
     timeline_fu (0.3.0)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)