diff --git a/RailsConf16/Gemfile.lock b/RailsConf16/Gemfile.lock
index 0880969..fa30e74 100644
--- a/RailsConf16/Gemfile.lock
+++ b/RailsConf16/Gemfile.lock
@@ -74,8 +74,8 @@ GEM
       faraday (~> 0.9)
       jwt (~> 1.5)
       multi_json (~> 1.10)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     zonefile (1.04)