diff --git a/Gemfile.lock b/Gemfile.lock
index 3471854..8761bd5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@ GEM
     public_suffix (3.1.1)
     puma (4.0.0)
       nio4r (~> 2.0)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)