diff --git a/deploy-ml-model/requirements.txt b/deploy-ml-model/requirements.txt
index 6599866..aceb0c4 100644
--- a/deploy-ml-model/requirements.txt
+++ b/deploy-ml-model/requirements.txt
@@ -3,3 +3,4 @@ uvicorn==0.18.3
 scikit-learn==1.0.2
 joblib==1.3.2
 pandas==2.1.0
+gunicorn==21.2.0