diff --git a/Gemfile.lock b/Gemfile.lock
index 7648e33..b824cfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.8)
+    rack (2.2.3)
     rake (13.0.1)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)