diff --git a/Gemfile.lock b/Gemfile.lock
index 79fa713..31e6e38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     openssl (3.1.0)
-    rack (2.2.6.2)
+    rack (2.2.6.4)
     rack-protection (2.2.3)
       rack
     rack-test (2.0.2)