diff --git a/Gemfile.lock b/Gemfile.lock
index 3c00042c..7d037e86 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -170,7 +170,7 @@ GEM
       nio4r (~> 2.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.11)
+    rack (1.6.12)
     rack-mini-profiler (1.0.2)
       rack (>= 1.2.0)
     rack-test (0.6.3)