diff --git a/builder/Gemfile.lock b/builder/Gemfile.lock
index 992ba4c8949..94cb46bd323 100644
--- a/builder/Gemfile.lock
+++ b/builder/Gemfile.lock
@@ -142,7 +142,7 @@ GEM
     mini_mime (1.1.5)
     minitest (5.25.1)
     msgpack (1.7.2)
-    net-imap (0.4.15)
+    net-imap (0.4.16)
       date
       net-protocol
     net-pop (0.1.2)