diff --git a/Gemfile.lock b/Gemfile.lock
index 1e5cb74..6edef87 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -201,7 +201,7 @@ GEM
     puma (4.0.0)
       nio4r (~> 2.0)
     raabro (1.1.6)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-livereload (0.3.17)
       rack
     rack-mini-profiler (1.0.2)