1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index f1be8b9ad..7ab42f42a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem "actionpack-xml_parser"
 gem "roadie-rails", "~> 1.2.1"
 gem "roadie", "~> 3.2.1"
 gem "mimemagic"
-gem "mail", "~> 2.6.6"
+gem "mail", "~> 2.6.4"
 
 gem "nokogiri", "~> 1.8.0"
 gem "i18n", "~> 0.7.0"