diff --git a/Gemfile.lock b/Gemfile.lock
index 861fb31..ccea4b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -137,7 +137,7 @@ GEM
     ptools (1.4.2)
     public_suffix (4.0.6)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.8.1)
     rack-livereload (0.3.17)
       rack
     rack-test (1.1.0)