diff --git a/Gemfile.lock b/Gemfile.lock
index bfeefd3..316a38f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,8 +45,8 @@ GEM
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
     safe_yaml (1.0.4)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext