diff --git a/.drone.yml b/.drone.yml
index 10c30ce..9cc96c5 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -20,6 +20,25 @@ steps:
       - master
   depends_on: [ clone ]
 
+- name: php7.4-dev
+  image: plugins/docker
+  pull: if-not-exists
+  settings:
+    username: 
+      from_secret: hub_username
+    password: 
+      from_secret: hub_password
+    repo: 
+      from_secret: hub_repo
+    build_args:
+      - PHP_VERSION=7.4-fpm-alpine3.13
+      - ENVIRONMENT=development
+    tags: 7.4-alpine-dev
+  when: 
+    branch:
+      - master
+  depends_on: [ clone ]
+
 - name: php7.3
   image: plugins/docker
   pull: if-not-exists
@@ -68,7 +87,7 @@ steps:
       from_secret: hub_repo
     build_args:
       - PHP_VERSION=7.3-fpm-alpine3.12
-      - ENVIRONMENT=dev
+      - ENVIRONMENT=development
     tags: 7.3-alpine-dev
   when: 
     branch:
diff --git a/Dockerfile b/Dockerfile
index c484a9d..5cc4677 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -102,10 +102,6 @@ RUN /usr/local/bin/php_helper.sh
 RUN wget -O /bin/cachetool http://gordalina.github.io/cachetool/downloads/cachetool.phar
 RUN chmod a+x /bin/cachetool
 
-#install phpunit
-RUN wget -O phpunit https://phar.phpunit.de/phpunit-9.phar 
-RUN install phpunit /usr/local/bin
-
 # Create directories
 RUN mkdir -p /var/www
 
diff --git a/docker/usr/local/bin/php_helper.sh b/docker/usr/local/bin/php_helper.sh
index 3c4f51c..5c6a4de 100755
--- a/docker/usr/local/bin/php_helper.sh
+++ b/docker/usr/local/bin/php_helper.sh
@@ -22,9 +22,14 @@ if [ $PHP_VERSION = '72' ]; then
 	composer global require hirak/prestissimo
 fi
 
+if [ $ENVIRONMENT != 'production' ]; then
+	wget -O phpunit https://phar.phpunit.de/phpunit-9.phar 
+	install phpunit /usr/local/bin
+fi 
+
 if [ $ENVIRONMENT = 'development' ]; then
 	apk --update --no-cache add autoconf g++ make
 	pecl install -f xdebug
 	docker-php-ext-enable xdebug
 	apk del --purge autoconf g++ make
-fi 
\ No newline at end of file
+fi