diff --git a/gems/bundled_gems b/gems/bundled_gems
index 5936dd820d..f9cf631765 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -6,7 +6,7 @@ test-unit       3.5.3   https://github.com/test-unit/test-unit
 rexml           3.2.5   https://github.com/ruby/rexml
 rss             0.2.9   https://github.com/ruby/rss
 net-ftp         0.1.3   https://github.com/ruby/net-ftp
-net-imap        0.3.0   https://github.com/ruby/net-imap
+net-imap        0.3.1   https://github.com/ruby/net-imap
 net-pop         0.1.2   https://github.com/ruby/net-pop
 net-smtp        0.3.2   https://github.com/ruby/net-smtp
 matrix          0.4.2   https://github.com/ruby/matrix