diff --git a/php7.4/dockerfile b/php7.4/dockerfile
index fad7c21..881df6b 100644
--- a/php7.4/dockerfile
+++ b/php7.4/dockerfile
@@ -12,6 +12,7 @@ RUN apk add --no-cache --virtual .build-deps \
         libxml2-dev \
         postgresql-dev \
         sqlite-dev \
+        libonig-dev \
     && apk add --no-cache \
         curl \
         git \
@@ -36,4 +37,9 @@ RUN apk add --no-cache --virtual .build-deps \
         xml \
         zip \
     && curl -s https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin/ --filename=composer \
-    && apk del -f .build-deps
\ No newline at end of file
+    && apk del -f .build-deps
+
+# 修改 composer 为国内镜像
+RUN composer config -g repo.packagist composer https://packagist.laravel-china.org
+
+WORKDIR /var/www
\ No newline at end of file