diff --git a/scripts/_common.sh b/scripts/_common.sh
index b128cee..58aaca8 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -1,4 +1,11 @@
 #!/bin/bash
+#=================================================
+# COMMON VARIABLES
+#=================================================
+
+pkg_dependencies="libav-tools"
+YNH_PHP_VERSION="7.3"
+extra_php_dependencies="php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-ldap"
 
 #=================================================
 # EXPERIMENTAL HELPERS
diff --git a/scripts/install b/scripts/install
index e8e86f1..085b4da 100644
--- a/scripts/install
+++ b/scripts/install
@@ -55,7 +55,7 @@ ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 #=================================================
 ynh_script_progression --message="Installing dependencies..." --weight=25
 
-ynh_install_app_dependencies libav-tools php-cli
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # CREATE A MYSQL DATABASE
@@ -81,7 +81,7 @@ ynh_setup_source --dest_dir="$final_path"
 ynh_script_progression --message="Configuring nginx web server..."
 
 # Create a dedicated nginx config
-ynh_add_nginx_config
+ynh_add_nginx_config YNH_PHP_VERSION
 
 #=================================================
 # CREATE DEDICATED USER
@@ -97,7 +97,7 @@ ynh_system_user_create --username=$app
 ynh_script_progression --message="Configuring php-fpm..."
 
 # Create a dedicated php-fpm config
-ynh_add_fpm_config
+ynh_add_fpm_config --phpversion=$YNH_PHP_VERSION
 
 #=================================================
 # SPECIFIC SETUP
diff --git a/scripts/upgrade b/scripts/upgrade
index e75754c..94f716d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -106,15 +106,16 @@ fi
 #=================================================
 ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=3
 
-# Create a dedicated nginx config
-ynh_add_nginx_config
+# Re-create a dedicated nginx config
+ynh_remove_nginx_config
+ynh_add_nginx_config YNH_PHP_VERSION
 
 #=================================================
 # UPGRADE DEPENDENCIES
 #=================================================
 ynh_script_progression --message="Upgrading dependencies..." --weight=5
 
-ynh_install_app_dependencies libav-tools php-cli
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # CREATE DEDICATED USER
@@ -130,7 +131,7 @@ ynh_system_user_create --username=$app
 ynh_script_progression --message="Upgrading php-fpm configuration..." --weight=2
 
 # Create a dedicated php-fpm config
-ynh_add_fpm_config
+ynh_add_fpm_config --phpversion="$YNH_PHP_VERSION" --package="$extra_php_dependencies"
 
 #=================================================
 # SPECIFIC UPGRADE