diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 39ae0619..3e003684 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -178,7 +178,7 @@ GEM
       drb (~> 2.0)
       prism (~> 1.5)
     msgpack (1.8.3)
-    net-imap (0.6.3)
+    net-imap (0.6.4.1)
       date
       net-protocol
     net-pop (0.1.2)