diff --git a/Gemfile.lock b/Gemfile.lock
index 5489ec7..75d711b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -139,7 +139,7 @@ GEM
     method_source (1.1.0)
     mini_mime (1.1.5)
     minitest (5.25.5)
-    net-imap (0.5.6)
+    net-imap (0.5.7)
       date
       net-protocol
     net-pop (0.1.2)