diff --git a/Dockerfile b/Dockerfile
index 5aee415..3433051 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,5 +7,5 @@ RUN sudo apt-get install -y \
 
 COPY requirements.txt /app/.
 
-RUN pip install -r requirements.txt
+RUN pip install -r requirements.txt --ignore-installed