diff --git a/Gemfile.lock b/Gemfile.lock
index 141afc122..8d6132849 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -582,7 +582,7 @@ GEM
       uri (>= 0.11.1)
     net-http-persistent (4.0.2)
       connection_pool (~> 2.2)
-    net-imap (0.4.24)
+    net-imap (0.6.4.1)
       date
       net-protocol
     net-pop (0.1.2)