diff --git a/Gemfile.lock b/Gemfile.lock
index 77fa2db..17d3aeb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,8 +79,7 @@ GEM
     kaminari (0.14.1)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
+    mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.23)