diff --git a/Gemfile.lock b/Gemfile.lock
index 8d0a69e05e..e36498c302 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -426,7 +426,8 @@ GEM
     loofah (2.24.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
-    mail (2.8.1)
+    mail (2.9.0)
+      logger
       mini_mime (>= 0.1.1)
       net-imap
       net-pop