diff --git a/Gemfile.lock b/Gemfile.lock
index 76d4dfb..1817147 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -199,12 +199,12 @@ GEM
       eventmachine (~> 1.0)
       rack (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (2.5.3)
       execjs (>= 0.3.0)