diff --git a/Gemfile.lock b/Gemfile.lock
index 4b08e9b..fd567c4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
       stringio
     public_suffix (6.0.1)
     racc (1.8.1)
-    rack (2.2.14)
+    rack (2.2.18)
     rack-livereload (0.3.17)
       rack
     rainbow (3.0.0)