diff --git a/Gemfile.lock b/Gemfile.lock
index 0adac71..958c0a5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -149,7 +149,7 @@ GEM
     matrix (0.4.2)
     method_source (1.1.0)
     mini_mime (1.1.5)
-    minitest (5.25.1)
+    minitest (5.25.2)
     msgpack (1.7.3)
     net-imap (0.5.0)
       date