diff --git a/builder/Gemfile.lock b/builder/Gemfile.lock
index 77569f51afb..243419cb826 100644
--- a/builder/Gemfile.lock
+++ b/builder/Gemfile.lock
@@ -151,7 +151,7 @@ GEM
     minitest (5.25.5)
     msgpack (1.8.0)
     mutex_m (0.3.0)
-    net-imap (0.5.7)
+    net-imap (0.5.8)
       date
       net-protocol
     net-pop (0.1.2)