diff --git a/11_compose/demo/app/Dockerfile b/11_compose/demo/app/Dockerfile
index c7d22ba..135dfba 100644
--- a/11_compose/demo/app/Dockerfile
+++ b/11_compose/demo/app/Dockerfile
@@ -1,5 +1,5 @@
 FROM python:3.12-alpine
-ADD . /code
+COPY . /code
 WORKDIR /code
 RUN pip install redis flask
 CMD ["python", "app.py"]
diff --git a/11_compose/demo/django/Dockerfile b/11_compose/demo/django/Dockerfile
index b45a393..1cc93f4 100644
--- a/11_compose/demo/django/Dockerfile
+++ b/11_compose/demo/django/Dockerfile
@@ -2,6 +2,6 @@ FROM python:3
 ENV PYTHONUNBUFFERED 1
 RUN mkdir /code
 WORKDIR /code
-ADD requirements.txt /code/
+COPY requirements.txt /code/
 RUN pip install -r requirements.txt
-ADD . /code/
+COPY . /code/