diff --git a/Gemfile.lock b/Gemfile.lock
index a78d5911..5a144038 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -177,10 +177,10 @@ GEM
     term-ansicolor (1.3.0)
       tins (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     tins (1.3.3)
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (2.5.1)
       execjs (>= 0.3.0)