diff --git a/Gemfile.lock b/Gemfile.lock
index 2162d77..ea12faf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,7 +98,7 @@ GEM
     parallel (1.20.1)
     public_suffix (4.0.6)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rack-livereload (0.3.16)
       rack
     rb-fsevent (0.11.0)