diff --git a/Gemfile.lock b/Gemfile.lock
index 17b9176e..307e2105 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -151,7 +151,7 @@ GEM
       net-imap
       net-pop
       net-smtp
-    marcel (1.0.3)
+    marcel (1.0.4)
     mini_mime (1.1.5)
     mini_portile2 (2.8.5)
     minitest (5.22.2)