diff --git a/laravel-horizon/Dockerfile b/laravel-horizon/Dockerfile
index 35a69554..f21dfdde 100644
--- a/laravel-horizon/Dockerfile
+++ b/laravel-horizon/Dockerfile
@@ -20,7 +20,8 @@ RUN apk --update add wget \
   autoconf \
   cyrus-sasl-dev \
   libgsasl-dev \
-  supervisor
+  supervisor \
+  procps
 
 RUN docker-php-ext-install mysqli mbstring pdo pdo_mysql tokenizer xml pcntl
 RUN pecl channel-update pecl.php.net && pecl install memcached mcrypt-1.0.1 && docker-php-ext-enable memcached