diff --git a/Dockerfile b/Dockerfile
index 1f43274..281d6b2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,30 +1,30 @@
-FROM python:3.10
+FROM python:3.8
 
-RUN python -m venv /app/venv
-ENV PATH="/app/venv/bin:$PATH"
-
-RUN python -m pip install --upgrade pip
+ARG YOUR_ENV
 
 WORKDIR /app/service
 
-COPY ./requirements.txt ./requirements.txt
-RUN python3 -m pip install -r requirements.txt
-
-COPY ./incl/pyinfra/requirements.txt ./incl/pyinfra/requirements.txt
-RUN python -m pip install -r incl/pyinfra/requirements.txt
-
-COPY ./incl/pdf2image/requirements.txt ./incl/pdf2image/requirements.txt
-RUN python -m pip install -r incl/pdf2image/requirements.txt
-
-COPY ./incl ./incl
-
-RUN python3 -m pip install -e incl/pyinfra
-RUN python3 -m pip install -e incl/pdf2image
-
 COPY ./src ./src
 COPY ./cv_analysis ./cv_analysis
-COPY ./setup.py ./setup.py
+COPY pyproject.toml .
+COPY poetry.lock .
 
-RUN python3 -m pip install -e .
+ENV YOUR_ENV=${YOUR_ENV} \
+  PYTHONFAULTHANDLER=1 \
+  PYTHONUNBUFFERED=1 \
+  PYTHONHASHSEED=random \
+  PIP_NO_CACHE_DIR=off \
+  PIP_DISABLE_PIP_VERSION_CHECK=on \
+  PIP_DEFAULT_TIMEOUT=100 \
+  POETRY_VERSION=1.2.2
+
+# System deps:
+RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/etc/poetry python3 -
+ENV PATH="$PATH:/etc/poetry/bin/"
+RUN poetry --version
+
+# Project initialization:
+RUN poetry config virtualenvs.create false
+RUN poetry install --no-interaction --no-ansi
 
 CMD ["python3", "-u", "src/serve.py"]
\ No newline at end of file