diff --git a/Dockerfile b/Dockerfile
index a29e2b5..b49b69e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,8 @@
 FROM python:3.11.2-slim
 
-RUN pip install poetry
-RUN mkdir diff_poetry_lock
-COPY diff_poetry_lock/* ./diff_poetry_lock/
-COPY poetry.lock ./diff_poetry_lock/
-COPY pyproject.toml ./diff_poetry_lock/
-RUN python3 -m venv /diff_poetry_lock/.venv
-RUN poetry install --directory /diff_poetry_lock
-ENV PYTHONPATH="/"
+RUN pip install poetry && mkdir /src
+COPY poetry.lock pyproject.toml README.md /src/
+COPY diff_poetry_lock /src/diff_poetry_lock
+RUN python3 -m venv /src/.venv && poetry install --directory /src --without=dev
 
-ENTRYPOINT ["poetry", "--directory", "/diff_poetry_lock", "run", "python3", "/diff_poetry_lock/run_poetry.py"]
+ENTRYPOINT ["poetry", "--directory", "/src", "run", "python3", "-m", "diff_poetry_lock.run_poetry"]
\ No newline at end of file