diff --git a/Dockerfile b/Dockerfile
index 1c82b2f..08db488 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,11 @@
 FROM debian8_python3
 
-ADD app /app
-RUN pip3 install -r /app/requirements.txt; \
+COPY app/requirements.txt /requirements.txt
+RUN pip3 install -r /requirements.txt; \
     mkdir /data
 
+ADD app /app
+
 VOLUME ["/data"]
 EXPOSE 5000
 ENTRYPOINT python3 /app/main.py