diff --git a/Gemfile.lock b/Gemfile.lock
index 7f4e311..1d46824 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,7 +128,7 @@ GEM
       stringio
     public_suffix (5.0.4)
     racc (1.8.1)
-    rack (3.0.16)
+    rack (3.1.18)
     rake (13.1.0)
     rchardet (1.8.0)
     rdoc (6.6.3.1)