diff --git a/web/delphi-status/challenge/Gemfile.lock b/web/delphi-status/challenge/Gemfile.lock
index a92641a..a5648a4 100644
--- a/web/delphi-status/challenge/Gemfile.lock
+++ b/web/delphi-status/challenge/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     openssl (2.0.0.beta.2)
     rack (1.6.0)
-    rack-protection (1.5.3)
+    rack-protection (1.5.5)
       rack
     sinatra (1.4.5)
       rack (~> 1.4)