diff --git a/Gemfile.lock b/Gemfile.lock
index 6864585..3ec7440 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,7 +5,7 @@ GEM
     nio4r (2.5.2)
     puma (4.3.0)
       nio4r (~> 2.0)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-protection (2.0.7)
       rack
     sinatra (2.0.7)