diff --git a/Dockerfile.dev b/Dockerfile.dev
index 6fc20ecaa..0c058cf80 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -1,4 +1,4 @@
-FROM python:3.6-alpine as base
+FROM python:3.7-alpine as base
 
 MAINTAINER Antoine Nguyen <tonio@ngyn.org>
 ENV VIRTUAL_ENV=/opt/venv
@@ -6,7 +6,7 @@ ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
 FROM base as build
 
-RUN apk add --update openssl librrd python3-dev libffi-dev gcc musl-dev libxml2-dev libxslt-dev \
+RUN apk add --update openssl librrd python3-dev libffi-dev gcc g++ musl-dev libxml2-dev libxslt-dev \
     libressl-dev jpeg-dev rrdtool-dev file make \
     && rm -rf /var/cache/apk/*
 RUN python3 -m venv $VIRTUAL_ENV