diff --git a/Gemfile.lock b/Gemfile.lock
index f9bc2c7fe..85c90cd7a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -708,6 +708,7 @@ GEM
       activesupport (>= 3)
       attr_required (>= 0.0.5)
       httpclient (>= 2.4)
+    sync (0.5.0)
     sysexits (1.2.0)
     systemu (2.6.5)
     temple (0.8.2)
@@ -720,7 +721,8 @@ GEM
     tilt (2.0.10)
     timecop (0.9.1)
     timers (4.3.0)
-    tins (1.20.3)
+    tins (1.24.1)
+      sync
     to_regexp (0.2.1)
     turbo_dev_assets (0.0.2)
     twitter (6.2.0)