diff --git a/Gemfile.lock b/Gemfile.lock
index 5f03a349..bcc1572e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -175,7 +175,7 @@ GEM
     minitest (5.25.4)
     net-http (0.6.0)
       uri
-    net-imap (0.5.4)
+    net-imap (0.5.5)
       date
       net-protocol
     net-ping (2.0.8)