diff --git a/Dockerfile b/Dockerfile
index 78b703c..52fd230 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,9 @@
 FROM php:7.0-apache
-RUN apt-get update
 RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
-RUN apt-get install -y libicu-dev xz-utils git zlib1g-dev python nodejs libgmp-dev gettext
+RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
+RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
+RUN apt-get update
+RUN apt-get install -y libicu-dev xz-utils git zlib1g-dev python nodejs libgmp-dev gettext yarn
 RUN docker-php-ext-install mbstring
 RUN docker-php-ext-install intl
 RUN docker-php-ext-install zip
@@ -12,7 +14,6 @@ RUN curl -sS https://getcomposer.org/installer | php
 COPY resources/php.ini /usr/local/etc/php/
 COPY . /var/www/html/
 RUN php composer.phar install --prefer-dist
-RUN npm install
-RUN ./node_modules/.bin/bower --allow-root install
+RUN yarn install
 RUN ./node_modules/.bin/grunt
 ENV CONVERT=1