diff --git a/Gemfile.lock b/Gemfile.lock
index 1de21ae..dcd9494 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
     json_pure (1.7.7)
     multi_json (1.3.7)
     rack (1.6.11)
-    rack-protection (1.5.1)
+    rack-protection (1.5.5)
       rack
     sequel (3.45.0)
     sinatra (1.4.4)