diff --git a/perfkitbenchmarker/data/docker/fibonacci/requirements.txt b/perfkitbenchmarker/data/docker/fibonacci/requirements.txt
index 8892a6ff7e..ce979343ec 100644
--- a/perfkitbenchmarker/data/docker/fibonacci/requirements.txt
+++ b/perfkitbenchmarker/data/docker/fibonacci/requirements.txt
@@ -1,7 +1,7 @@
 blinker==1.7.0
 click==8.1.7
 Flask==3.0.2
-gunicorn==22.0.0
+gunicorn==23.0.0
 itsdangerous==2.1.2
 Jinja2==3.1.4
 MarkupSafe==2.1.5