diff --git a/Gemfile.lock b/Gemfile.lock
index d78203d26..2eebee034 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -224,7 +224,7 @@ GEM
     method_source (1.1.0)
     mini_magick (4.12.0)
     mini_mime (1.1.5)
-    minitest (5.22.3)
+    minitest (5.23.1)
     msgpack (1.7.2)
     net-http-persistent (4.0.2)
       connection_pool (~> 2.2)