diff --git a/Gemfile.lock b/Gemfile.lock
index 79b5131..4a4baad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -120,7 +120,7 @@ GEM
     public_suffix (4.0.3)
     puma (4.3.1)
       nio4r (~> 2.0)
-    rack (2.1.2)
+    rack (2.2.3.1)
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)