diff --git a/Gemfile.lock b/Gemfile.lock
index fd481fa..a65f2b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -122,7 +122,7 @@ GEM
     marcel (1.0.4)
     mini_mime (1.1.5)
     minitest (5.25.4)
-    net-imap (0.5.4)
+    net-imap (0.5.6)
       date
       net-protocol
     net-pop (0.1.2)