diff --git a/Dockerfile b/Dockerfile
index 407abb4..74cd784 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ FROM python:3.12-slim-bookworm
 
 ENV PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
-    PORT=10001 \
+    PORT=21500 \
     WEBAPP_DIR=/app/webapp \
     OUTPUTS_DIR=/app/server/outputs \
     UPLOADS_DIR=/app/server/.uploads
@@ -40,6 +40,6 @@ COPY webapp ./webapp
 # Remotion이 쓰는 headless 브라우저 미리 다운로드 (런타임 첫 렌더 지연 제거)
 RUN cd remotion && npx remotion browser ensure
 
-EXPOSE 10001
+EXPOSE 21500
 WORKDIR /app/server
 CMD ["sh", "-c", "uvicorn app.main:app --host 0.0.0.0 --port ${PORT}"]
diff --git a/docker-compose.yml b/docker-compose.yml
index 264a2aa..56362a3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,7 +9,7 @@ services:
       dockerfile: Dockerfile
     image: ado2-hookit:local
     ports:
-      - "10001:10001"
+      - "21500:21500"
     # .env 의 모든 키를 컨테이너로 주입 (config.py 가 읽음)
     env_file:
       - .env