diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index 0c4317a7dc..5b22518b8b 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -98,11 +98,13 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
+    sync (0.5.0)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
     thor (1.0.1)
     thread_safe (0.3.6)
-    tins (1.22.2)
+    tins (1.23.0)
+      sync
     tzinfo (1.2.6)
       thread_safe (~> 0.1)
     unf (0.1.4)