diff --git a/Gemfile.lock b/Gemfile.lock
index 56ad994..5b345a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,7 +128,7 @@ GEM
     mini_mime (1.1.2)
     mini_portile2 (2.8.9)
     minitest (5.27.0)
-    net-imap (0.4.24)
+    net-imap (0.5.15)
       date
       net-protocol
     net-pop (0.1.2)