diff --git a/Gemfile.lock b/Gemfile.lock
index cabff89..089d571 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,12 +100,12 @@ GEM
     slop (3.6.0)
     temple (0.7.6)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    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)
     url_mount (0.2.1)
       rack