diff --git a/Gemfile.lock b/Gemfile.lock
index ede0c8b..a995f2a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,7 +77,7 @@ GEM
       stringio
     public_suffix (5.0.3)
     racc (1.7.3)
-    rack (3.0.8)
+    rack (3.0.9.1)
     rake (13.1.0)
     rchardet (1.8.0)
     rdoc (6.6.0)