diff --git a/Gemfile.lock b/Gemfile.lock
index a08a7ed..85ce396 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -671,7 +671,7 @@ GEM
     public_suffix (3.0.2)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.9)
+    rack (1.6.12)
     rack-mini-profiler (0.10.7)
       rack (>= 1.2.0)
     rack-protection (1.5.5)