diff --git a/Gemfile.lock b/Gemfile.lock
index 60c5987..c1416d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -240,7 +240,7 @@ GEM
       activesupport (>= 3.0.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.10)
+    rack (1.6.12)
     rack-mini-profiler (1.0.0)
       rack (>= 1.2.0)
     rack-protection (2.0.1)