diff --git a/Gemfile.lock b/Gemfile.lock
index 9f155d8..c104e20 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     nori (2.6.0)
     public_suffix (4.0.6)
-    rack (2.2.3)
+    rack (3.0.4.1)
     rake (13.0.1)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)