diff --git a/Gemfile.lock b/Gemfile.lock
index a299e89..4ef97ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -110,7 +110,7 @@ GEM
       net-smtp
     marcel (1.0.4)
     mini_mime (1.1.5)
-    minitest (5.25.0)
+    minitest (5.25.1)
     msgpack (1.7.2)
     net-imap (0.4.14)
       date
@@ -224,7 +224,7 @@ GEM
       rubocop-ast (>= 1.31.1, < 2.0)
     ruby-progressbar (1.13.0)
     securerandom (0.3.1)
-    shoulda-matchers (6.3.1)
+    shoulda-matchers (6.4.0)
       activesupport (>= 5.2.0)
     stringio (3.1.1)
     strscan (3.1.0)