diff --git a/Dockerfile b/Dockerfile
index 2a49020..46f6e41 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,8 @@ FROM python:3.6-alpine
 WORKDIR /usr/src/app
 
 RUN apk update
-RUN apk add gcc libxml2-dev libxslt-dev py3-pip libc-dev
+RUN apk add gcc libxml2-dev libxslt-dev py3-pip libc-dev linux-headers
+RUN pip3 install psutil
 
 RUN pip3 install malojaserver