diff --git a/Gemfile.lock b/Gemfile.lock
index 6187930dda3..3d19bec5f90 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -418,7 +418,7 @@ GEM
     mini_magick (4.12.0)
     mini_mime (1.1.5)
     mini_portile2 (2.8.7)
-    minitest (5.20.0)
+    minitest (5.23.1)
     minitest-fail-fast (0.1.0)
       minitest (~> 5)
     minitest-stub-const (0.6)