diff --git a/Gemfile.lock b/Gemfile.lock
index 5fd9888..6741892 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,7 +141,7 @@ GEM
     psych (3.1.0)
     public_suffix (3.1.0)
     puma (3.12.4)
-    rack (2.0.7)
+    rack (2.2.2)
     rack-cors (1.0.5)
       rack (>= 1.6.0)
     rack-test (1.1.0)