diff --git a/docker/mock-server/Gemfile.lock b/docker/mock-server/Gemfile.lock
index 822ffde..da0cc9a 100644
--- a/docker/mock-server/Gemfile.lock
+++ b/docker/mock-server/Gemfile.lock
@@ -113,7 +113,7 @@ GEM
     puma (5.6.8)
       nio4r (~> 2.0)
     racc (1.7.1)
-    rack (2.2.6.4)
+    rack (2.2.8.1)
     rack-test (2.0.2)
       rack (>= 1.3)
     rails (7.0.4)