diff --git a/Dockerfile b/Dockerfile
index 6f525c1..bf0b012 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -38,7 +38,7 @@ RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
   && apk upgrade --no-cache \
   && apk add nodejs --no-cache
 
-ENV NODE_ENV production
+ENV NODE_ENV=production
 
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
@@ -54,7 +54,7 @@ USER nextjs
 
 EXPOSE 3000
 
-ENV PORT 3000
+ENV PORT=3000
 
 # CMD ["node", "server.js"]
 CMD HOSTNAME="0.0.0.0" node server.js