diff --git a/Gemfile.lock b/Gemfile.lock
index f8d369018234..25ef5a2b2037 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -354,7 +354,7 @@ GEM
     mysql2 (0.5.5)
     net-http-persistent (4.0.2)
       connection_pool (~> 2.2)
-    net-imap (0.4.2)
+    net-imap (0.4.3)
       date
       net-protocol
     net-pop (0.1.2)