diff --git a/nginx/nginx-dev/Dockerfile b/nginx/nginx-dev/Dockerfile
index bd60a14..f9feeb4 100644
--- a/nginx/nginx-dev/Dockerfile
+++ b/nginx/nginx-dev/Dockerfile
@@ -6,4 +6,5 @@ RUN pip3 install --break-system-packages requests minio
 COPY ./config /etc/nginx
 COPY prepare.py prepare.py
 COPY run.sh run.sh
+ENV PYTHONUNBUFFERED=1
 ENTRYPOINT ["run.sh"]
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