diff --git a/Gemfile.lock b/Gemfile.lock
index 57d4c2c..1386cb8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -199,7 +199,7 @@ GEM
     temple (0.8.0)
     thread_safe (0.3.6)
     tilt (2.0.9)
-    tzinfo (1.2.4)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)