diff --git a/docker/Dockerfile b/docker/Dockerfile
index 3c9920b..2fe22f1 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -37,6 +37,11 @@ RUN apk add --no-cache libjpeg libgd libpng freetype freetype-dev zlib-dev libpn
 	docker-php-ext-install -j$(nproc) gd && \
 	apk del --no-cache zlib-dev libpng-dev jpeg-dev freetype-dev
 
+# Add intl
+RUN apk add --no-cache icu icu-dev && \
+	docker-php-ext-install -j$(nproc) intl && \
+	apk del --no-cache icu-dev
+
 # Add composer
 RUN curl -4 https://getcomposer.org/installer|php -- --install-dir=/usr/local/bin --filename=composer
 ENV COMPOSER_HOME=/var/cache/composer