diff --git a/Gemfile.lock b/Gemfile.lock
index b6d44ac9..7946baff 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -195,7 +195,7 @@ GEM
       rake
     mini_mime (1.1.5)
     mini_portile2 (2.8.7)
-    minitest (5.24.1)
+    minitest (5.25.0)
     mousetrap-rails (1.4.6)
     mysql2 (0.5.6)
     net-imap (0.4.14)