diff --git a/buildpacks/buildpack-multi/tests/multi/Gemfile.lock b/buildpacks/buildpack-multi/tests/multi/Gemfile.lock
index 90ab1e0a1..8a4c8ff14 100644
--- a/buildpacks/buildpack-multi/tests/multi/Gemfile.lock
+++ b/buildpacks/buildpack-multi/tests/multi/Gemfile.lock
@@ -5,7 +5,7 @@ GEM
     logger (1.6.1)
     mustermann (3.0.3)
       ruby2_keywords (~> 0.0.1)
-    rack (3.1.9)
+    rack (3.1.11)
     rack-protection (4.1.1)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)