diff --git a/src/Dockerfile b/src/Dockerfile
index 204cad22..96ab5a06 100644
--- a/src/Dockerfile
+++ b/src/Dockerfile
@@ -1,6 +1,6 @@
 FROM python:3.6-alpine
 
-RUN apk --no-cache add build-base
+RUN apk --no-cache add build-base libffi-dev
 
 WORKDIR /app
 ADD requirements.txt /app