diff --git a/Gemfile.lock b/Gemfile.lock
index 756bfd26..2df58961 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -132,7 +132,7 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.5)
     mini_portile2 (2.8.5)
-    minitest (5.22.0)
+    minitest (5.22.1)
     msgpack (1.7.2)
     mutex_m (0.2.0)
     net-imap (0.4.10)