diff --git a/Dockerfile b/Dockerfile
index 143a2cd..82c073d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,10 +2,11 @@ FROM python:3.8
 
 COPY README.md requirements.txt setup.cfg setup.py /usr/src/file_catalog/
 COPY file_catalog /usr/src/file_catalog/file_catalog
-RUN pip install --no-cache-dir /usr/src/file_catalog
+RUN pip install --no-cache-dir -r /usr/src/file_catalog/requirements.txt
 
 RUN useradd -m -U app
 USER app
 
+ENV PYTHONPATH=/usr/src/file_catalog
 WORKDIR /usr/src/file_catalog
 CMD ["python3", "-m", "file_catalog"]