diff --git a/Gemfile.lock b/Gemfile.lock
index d5cd5a5..e3dc8b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -144,7 +144,7 @@ GEM
     parslet (2.0.0)
     public_suffix (5.0.1)
     racc (1.6.2)
-    rack (2.2.6.2)
+    rack (2.2.6.3)
     rack-livereload (0.3.17)
       rack
     rb-fsevent (0.11.2)