diff --git a/Gemfile.lock b/Gemfile.lock
index 007297ed..1c7f7060 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -325,7 +325,7 @@ GEM
       connection_pool (~> 2.2)
     net-http2 (0.18.5)
       http-2 (~> 0.11)
-    net-imap (0.5.5)
+    net-imap (0.5.6)
       date
       net-protocol
     net-pop (0.1.2)