diff --git a/Dockerfile b/Dockerfile
index d3fbc2e..4c196f7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,7 +22,7 @@ FROM node:lts-alpine AS runner
 
 WORKDIR /app
 
-ENV NODE_ENV production
+ENV NODE_ENV=production
 
 RUN addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 nextjs
 
@@ -36,6 +36,6 @@ USER nextjs
 
 EXPOSE 3000
 
-ENV PORT 3000
+ENV PORT=3000
 
 CMD ["node", "server.js"]