diff --git a/Gemfile.lock b/Gemfile.lock
index bb1e235..0bf314b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,7 +141,7 @@ GEM
     parslet (2.0.0)
     public_suffix (5.0.4)
     racc (1.8.1)
-    rack (2.2.20)
+    rack (2.2.22)
     rack-livereload (0.3.17)
       rack
     rb-fsevent (0.11.2)