diff --git a/buildpacks/buildpack-multi/tests/multi/requirements.txt b/buildpacks/buildpack-multi/tests/multi/requirements.txt
index 9220a718f..466cfb62a 100644
--- a/buildpacks/buildpack-multi/tests/multi/requirements.txt
+++ b/buildpacks/buildpack-multi/tests/multi/requirements.txt
@@ -1,4 +1,4 @@
 Flask==2.3.2
 Jinja2==3.1.2
-gunicorn==20.1.0
+gunicorn==21.2.0
 markupsafe==2.1.3