diff --git a/Gemfile.lock b/Gemfile.lock
index 83eed6b..ef77924 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -148,7 +148,7 @@ GEM
       net-smtp
     marcel (1.0.4)
     mini_mime (1.1.5)
-    minitest (5.25.1)
+    minitest (5.25.2)
     mocha (2.5.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.5)