diff --git a/Gemfile.lock b/Gemfile.lock
index f49bfca..adf518d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -147,7 +147,7 @@ GEM
       method_source (~> 1.0)
     public_suffix (4.0.6)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rack-livereload (0.3.17)
       rack
     rb-fsevent (0.10.4)