diff --git a/Gemfile.lock b/Gemfile.lock
index ff0764b8354..bf2de78a142 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,9 +108,9 @@ GEM
     sprockets (3.4.1)
       rack (> 1, < 3)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (1.4.1)
-    tzinfo (1.2.2)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)