diff --git a/Gemfile.lock b/Gemfile.lock
index 3883dde..04c058d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,7 @@ GEM
     mustermann (1.0.3)
     nio4r (2.3.1)
     process-group (1.1.0)
-    rack (2.0.6)
+    rack (2.2.3)
     rack-protection (2.0.5)
       rack
     rainbow (3.0.0)