diff --git a/Gemfile.lock b/Gemfile.lock
index 0ed338b..94673c9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,7 +63,7 @@ GEM
     path_expander (1.1.0)
     psych (3.1.0)
     public_suffix (4.0.5)
-    rack (2.2.3)
+    rack (3.0.4.1)
     rack-mini-profiler (2.0.2)
       rack (>= 1.2.0)
     rails_best_practices (1.20.0)