diff --git a/Gemfile.lock b/Gemfile.lock
index 543a27a..58b1124 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -161,7 +161,7 @@ GEM
     marcel (1.0.4)
     mini_mime (1.1.5)
     mini_portile2 (2.8.6)
-    minitest (5.23.0)
+    minitest (5.23.1)
     mocha (2.3.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.2)