diff --git a/Gemfile.lock b/Gemfile.lock
index 5d06a21..7b12e7a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -210,7 +210,7 @@ GEM
     msgpack (1.7.2)
     multi_xml (0.7.1)
       bigdecimal (~> 3.1)
-    net-imap (0.4.16)
+    net-imap (0.4.17)
       date
       net-protocol
     net-pop (0.1.2)