diff --git a/Gemfile.lock b/Gemfile.lock
index a28e2ba..920fa4d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,7 +96,7 @@ GEM
     parallel (1.19.2)
     ptools (1.4.0)
     public_suffix (4.0.5)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rack-livereload (0.3.17)
       rack
     rb-fsevent (0.10.4)