diff --git a/sidecar-dependent-app/Gemfile.lock b/sidecar-dependent-app/Gemfile.lock
index 7da8d19..98bb62b 100644
--- a/sidecar-dependent-app/Gemfile.lock
+++ b/sidecar-dependent-app/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
     ffi (1.10.0)
     json (2.1.0)
     mustermann (1.0.3)
-    rack (2.0.6)
+    rack (2.2.3)
     rack-protection (2.0.4)
       rack
     rack-test (0.8.3)