diff --git a/Gemfile.lock b/Gemfile.lock
index 0070969..7873bfa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,13 +141,13 @@ GEM
     term-ansicolor (1.3.2)
       tins (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     tins (1.6.0)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext