diff --git a/Gemfile.lock b/Gemfile.lock
index d67a740b..30e1df9e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
     mocha (2.7.1)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.8.0)
-    net-imap (0.5.10)
+    net-imap (0.5.11)
       date
       net-protocol
     net-pop (0.1.2)