diff --git a/Gemfile.lock b/Gemfile.lock
index 33a57d8f7e..ab9feedd3a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -411,7 +411,7 @@ GEM
     nesty (1.0.2)
     net-http (0.4.1)
       uri
-    net-imap (0.4.14)
+    net-imap (0.4.15)
       date
       net-protocol
     net-pop (0.1.2)