diff --git a/Gemfile.lock b/Gemfile.lock
index 4c772c061..d043c8a1d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     drb (2.2.1)
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.22.3)
+    minitest (5.23.0)
     mutex_m (0.2.0)
     rexml (3.2.6)
     rspec (3.13.0)