diff --git a/Gemfile.lock b/Gemfile.lock
index 152d1202..6310324e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -173,7 +173,7 @@ GEM
     progress (3.6.0)
     public_suffix (5.0.0)
     racc (1.6.1)
-    rack (2.2.4)
+    rack (2.2.6.4)
     rack-livereload (0.3.17)
       rack
     rack-test (2.0.2)