diff --git a/Gemfile.lock b/Gemfile.lock
index f47cf05..38b80c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -215,7 +215,7 @@ GEM
     public_suffix (4.0.1)
     puma (4.2.1)
       nio4r (~> 2.0)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-livereload (0.3.17)
       rack
     rack-test (1.1.0)