diff --git a/docs/php/docker81.md b/docs/php/docker81.md
index ee25cac..10555fa 100644
--- a/docs/php/docker81.md
+++ b/docs/php/docker81.md
@@ -51,8 +51,8 @@ docker exec -it workerman bash
 
 ```sh
 apt-get update && apt-get install -y \
-    libfreetype6-dev libjpeg62-turbo-dev libpng-dev libwebp-dev zlib1g-dev
-    libzip-dev
+    libfreetype6-dev libjpeg62-turbo-dev libpng-dev libwebp-dev zlib1g-dev \
+    libzip-dev zip \
     libevent-dev
 ```
 
@@ -98,7 +98,7 @@ php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
 php -r "if (hash_file('sha384', 'composer-setup.php') === 'e21205b207c3ff031906575712edab6f13eb0b361f2085f1f1237b7126d785e826a450292b6cfd1d64d92e6563bbde02') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
 php composer-setup.php
 php -r "unlink('composer-setup.php');"
-sudo mv composer.phar /usr/local/bin/composer
+mv composer.phar /usr/local/bin/composer
 ```
 
 ### 创建一个应用目录