diff --git a/Marking.OCR.Service/Dockerfile b/Marking.OCR.Service/Dockerfile
index f4b592e..f23ab80 100644
--- a/Marking.OCR.Service/Dockerfile
+++ b/Marking.OCR.Service/Dockerfile
@@ -4,6 +4,8 @@ FROM dotnet/aspnet:8.0
 
 WORKDIR /app
 
+ENV ASPNETCORE_HTTP_PORTS=80
+
 EXPOSE 80 
 
 COPY . .