diff --git a/Gemfile.lock b/Gemfile.lock
index 559da19..50aff24 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
       byebug (~> 11.0)
       pry (~> 0.10)
     public_suffix (4.0.1)
-    rack (2.0.9)
+    rack (2.2.3)
     rack-cors (1.1.0)
       rack (>= 2.0.0)
     rack-test (1.1.0)