diff --git a/Gemfile.lock b/Gemfile.lock
index 54a0781..50d4622 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -214,7 +214,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.9)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)