diff --git a/backend/service-authentication/Dockerfile b/backend/service-authentication/Dockerfile
index 198444f..94cb3f1 100644
--- a/backend/service-authentication/Dockerfile
+++ b/backend/service-authentication/Dockerfile
@@ -3,5 +3,4 @@ WORKDIR /app-authentication
 COPY ["package.json", "package-lock.json*", "./"]
 RUN npm install
 COPY . .
-EXPOSE 3000
 CMD [ "node", "server.js" ]
\ No newline at end of file
diff --git a/backend/service-message/Dockerfile b/backend/service-message/Dockerfile
index ff0de4c..78cf074 100644
--- a/backend/service-message/Dockerfile
+++ b/backend/service-message/Dockerfile
@@ -3,5 +3,4 @@ WORKDIR /app-message
 COPY ["package.json", "package-lock.json*", "./"]
 RUN npm install --NODE_ENV
 COPY . .
-EXPOSE 3000
 CMD [ "node", "server.js" ]
\ No newline at end of file