diff --git a/Dockerfile b/Dockerfile
index 0e675b7..e1368ed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,15 +1,15 @@
-FROM php:7.0
+FROM php:7.4
 
 MAINTAINER Jakub Zalas <jakub@zalas.pl>
 
-RUN buildDeps="zlib1g-dev libicu-dev" \
-    && apt-get update && apt-get install --no-install-recommends -y git libicu52 $buildDeps && rm -r /var/lib/apt/lists/* \
-    && docker-php-ext-install intl zip pcntl mbstring bcmath \
-    && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false -o APT::AutoRemove::SuggestsImportant=false $buildDeps
+RUN buildDeps="zlib1g-dev libzip-dev libonig-dev" \
+    && apt-get update && apt-get install --no-install-recommends -y git $buildDeps && rm -r /var/lib/apt/lists/* \
+    && docker-php-ext-install zip pcntl mbstring bcmath \
+    && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false -o APT::AutoRemove::SuggestsImportant=false
 
 RUN echo "date.timezone=UTC" >> $PHP_INI_DIR/php.ini \
  && echo "error_reporting=E_ALL" >> $PHP_INI_DIR/php.ini
 
-RUN php -r "readfile('https://getcomposer.org/installer');" | php -- --install-dir=/usr/local/bin --filename=composer
+COPY --from=composer:1.9 /usr/bin/composer /usr/bin/composer
 
 VOLUME ["/root/.composer/cache"]