diff --git a/Gemfile.lock b/Gemfile.lock
index 1a8d789..77c83ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     concurrent-ruby (1.0.2)
     connection_pool (2.2.0)
-    rack (2.0.1)
+    rack (3.0.4.1)
     rack-protection (1.5.3)
       rack
     redis (3.3.1)