diff --git a/Gemfile.lock b/Gemfile.lock
index bf7919fe..cc513d94 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -257,7 +257,7 @@ GEM
     net-http-digest_auth (1.4.1)
     net-http-persistent (4.0.5)
       connection_pool (~> 2.2)
-    net-imap (0.5.6)
+    net-imap (0.5.7)
       date
       net-protocol
     net-pop (0.1.2)