diff --git a/Gemfile.lock b/Gemfile.lock
index 6559db0..99a136a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -646,7 +646,7 @@ GEM
     multi_json (1.15.0)
     multi_xml (0.6.0)
     mustache (1.1.1)
-    net-imap (0.4.9)
+    net-imap (0.3.4)
       date
       net-protocol
     net-pop (0.1.2)