diff --git a/Dockerfile b/Dockerfile
index c760e40..2b2748e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,6 @@ FROM php:7.4-fpm-alpine
 RUN apk add --no-cache libpng libpng-dev libjpeg-turbo-dev libwebp-dev zlib-dev libxpm-dev libzip-dev oniguruma-dev libxml2-dev \
         && docker-php-ext-install zip bcmath pdo_mysql mysqli mbstring opcache soap \
         && docker-php-ext-configure gd \
-        && docker-php-ext-install gd \
-        && apk del libpng libpng-dev libjpeg-turbo-dev libwebp-dev zlib-dev libxpm-dev libzip-dev oniguruma-dev libxml2-dev
+        && docker-php-ext-install gd
 
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer