diff --git a/k8s/apps/mtproxy/Dockerfile b/k8s/apps/mtproxy/Dockerfile
index 83b3067..b6b051d 100644
--- a/k8s/apps/mtproxy/Dockerfile
+++ b/k8s/apps/mtproxy/Dockerfile
@@ -10,7 +10,7 @@ RUN make -j$(nproc)
 
 FROM debian:bookworm-slim
 
-ENV PROXY_PORT=443
+ENV PROXY_PORT=30443
 ENV STATS_PORT=8888
 ENV WORKERS=1
 ENV RUN_USER=nobody