diff --git a/Gemfile.lock b/Gemfile.lock
index 569c93a4..92f382c6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
     matrix (0.4.3)
     mini_mime (1.1.5)
     mini_portile2 (2.8.9)
-    minitest (6.0.5)
+    minitest (6.0.6)
       drb (~> 2.0)
       prism (~> 1.5)
     mocha (3.1.0)
@@ -389,7 +389,7 @@ CHECKSUMS
   matrix (0.4.3) sha256=a0d5ab7ddcc1973ff690ab361b67f359acbb16958d1dc072b8b956a286564c5b
   mini_mime (1.1.5) sha256=8681b7e2e4215f2a159f9400b5816d85e9d8c6c6b491e96a12797e798f8bccef
   mini_portile2 (2.8.9) sha256=0cd7c7f824e010c072e33f68bc02d85a00aeb6fce05bb4819c03dfd3c140c289
-  minitest (6.0.5) sha256=f007d7246bf4feea549502842cd7c6aba8851cdc9c90ba06de9c476c0d01155c
+  minitest (6.0.6) sha256=153ea36d1d987a62942382b61075745042a2b3123b1cd48f4c3675af9cc7d6f1
   mocha (3.1.0) sha256=75f42d69ebfb1f10b32489dff8f8431d37a418120ecdfc07afe3bc183d4e1d56
   net-imap (0.6.3) sha256=9bab75f876596d09ee7bf911a291da478e0cd6badc54dfb82874855ccc82f2ad
   net-pop (0.1.2) sha256=848b4e982013c15b2f0382792268763b748cce91c9e91e36b0f27ed26420dff3