diff --git a/Gemfile.lock b/Gemfile.lock
index dbbdddd..0bdc669 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -237,7 +237,7 @@ GEM
     public_suffix (4.0.3)
     puma (4.3.1)
       nio4r (~> 2.0)
-    rack (2.1.2)
+    rack (2.2.3)
     rack-livereload (0.3.17)
       rack
     rack-protection (2.0.8.1)