diff --git a/Gemfile.lock b/Gemfile.lock
index e9f6b1e..0873c73 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,7 +12,7 @@ GEM
       json
       rack
     json (2.5.1)
-    rack (2.2.3)
+    rack (3.0.4.1)
 
 PLATFORMS
   x86_64-linux