diff --git a/Gemfile.lock b/Gemfile.lock
index 4825330..633ad40 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,7 @@ GEM
     multi_json (1.13.1)
     mustermann (1.0.3)
     puma (3.12.0)
-    rack (2.0.6)
+    rack (2.2.2)
     rack-protection (2.0.5)
       rack
     rack-test (1.1.0)