diff --git a/.docker/php7.3-dev/Dockerfile b/.docker/php7.3-dev/Dockerfile
index fcc639c..3d5e25d 100644
--- a/.docker/php7.3-dev/Dockerfile
+++ b/.docker/php7.3-dev/Dockerfile
@@ -10,8 +10,6 @@ ENV COMPOSER_CACHE_DIR /.composer_cache
 
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
 
-RUN composer -vvv global require hirak/prestissimo
-
 # php extensions
 
 RUN pecl install xdebug
diff --git a/composer.json b/composer.json
index 8012546..a60f229 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "description": "Micro module Task common library",
     "license": "proprietary",
     "require": {
-        "php": "^7.3",
+        "php": "^7.3 || ^8.0",
         "beberlei/assert": "^3.2",
         "broadway/broadway": "^2.2",
         "queue-interop/amqp-interop": "^0.8",