diff --git a/Dockerfile b/Dockerfile
index f9958cb..ea76a0c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM python:3
 WORKDIR /usr/src/app
 
 COPY requirements.txt ./
-RUN pip install --trusted-host pypi.org --no-cache-dir -r requirements.txt
+RUN pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org --no-cache-dir -r requirements.txt
 
 LABEL org.opencontainers.image.title="cloud-native-demo"