diff --git a/Gemfile.lock b/Gemfile.lock
index a82a400..e699110 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
     method_source (0.8.2)
     mime-types (2.4.3)
     mini_portile (0.6.1)
-    minitest (5.4.3)
+    minitest (5.5.0)
     multi_json (1.10.1)
     nested_form (0.3.2)
     netrc (0.10.0)