diff --git a/Gemfile.lock b/Gemfile.lock
index c4a25ec..6a9d2be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
       concurrent-ruby (~> 1.0)
     minitest (5.14.1)
     multipart-post (2.1.1)
-    rack (2.2.3)
+    rack (3.0.4.2)
     rainbow (3.0.0)
     rake (13.0.1)
     thread_safe (0.3.6)