diff --git a/scripts/_common.sh b/scripts/_common.sh
index 7b2371f..a9695fc 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -3,7 +3,8 @@
 #=================================================
 
 # dependencies used by the app
-pkg_dependencies="php7.3-curl php7.3-dom php7.3-gd php7.3-json php7.3-mbstring php7.3-pdo-mysql php7.3-tokenizer php7.3-zip"
+pkg_dependencies=""
+extra_pkg_dependencies="php7.3-curl php7.3-dom php7.3-gd php7.3-json php7.3-mbstring php7.3-pdo-mysql php7.3-tokenizer php7.3-zip"
 
 # Version numbers
 php_version="7.3"
diff --git a/scripts/install b/scripts/install
index 363c3ce..3922b21 100644
--- a/scripts/install
+++ b/scripts/install
@@ -81,20 +81,23 @@ ynh_app_setting_set $app bazaar_extension $bazaar_extension
 
 #=================================================
 # STANDARD MODIFICATIONS
+#=================================================
+# INSTALL PHP
+#=================================================
+
+if [ "$(lsb_release --codename --short)" = "buster" ]; then
+	pkg_dependencies="$pkg_dependencies $extra_pkg_dependencies"
+else
+	ynh_print_info --message="Installing php${php_version}..."
+	ynh_install_php --phpversion="${php_version}" --package="$extra_pkg_dependencies"
+fi
+
 #=================================================
 # INSTALL DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Installing dependencies..." --time --weight=1
+ynh_print_info --message="Installing dependencies..."
 
-### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
-### Those deb packages will be installed as dependencies of this package.
-### If you're not using this helper:
-###		- Remove the section "REMOVE DEPENDENCIES" in the remove script
-###		- Remove the variable "pkg_dependencies" in _common.sh
-###		- As well as the section "REINSTALL DEPENDENCIES" in the restore script
-###		- And the section "UPGRADE DEPENDENCIES" in the upgrade script
-
-ynh_install_php --phpversion=${php_version} --package="$pkg_dependencies"
+ynh_install_app_dependencies "$pkg_dependencies"
 
 #===================================================
 # CREATE DEDICATED USER
diff --git a/scripts/remove b/scripts/remove
index 267cc8f..d7f783e 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -41,7 +41,9 @@ ynh_script_progression --message="Removing dependencies..." --time --weight=1
 
 # Remove metapackage and its dependencies
 ynh_remove_app_dependencies
-ynh_remove_php
+if [ "$(lsb_release --codename --short)" != "buster" ]; then
+	ynh_remove_php
+fi
 
 #=================================================
 # REMOVE APP MAIN DIR
diff --git a/scripts/restore b/scripts/restore
index a7dba46..88b3dfe 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -74,6 +74,17 @@ chown -R $app: $final_path
 chown -R $app:www-data $final_path/storage
 chmod -R 0775 $final_path
 
+#=================================================
+# INSTALL PHP
+#=================================================
+
+if [ "$(lsb_release --codename --short)" = "buster" ]; then
+	pkg_dependencies="$pkg_dependencies $extra_pkg_dependencies"
+else
+	ynh_print_info --message="Installing php${php_version}..."
+	ynh_install_php --phpversion="${php_version}" --package="$extra_pkg_dependencies"
+fi
+
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
 #=================================================
@@ -88,7 +99,7 @@ ynh_restore_file --origin_path="/etc/php/${php_version}/fpm/pool.d/$app.conf"
 ynh_script_progression --message="Reinstalling dependencies..." --time --weight=1
 
 # Define and install dependencies
-ynh_install_php --phpversion=${php_version} --package="$pkg_dependencies"
+ynh_install_app_dependencies "$pkg_dependencies"
 
 #=================================================
 # RESTORE THE MYSQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index 0ac957f..55fb671 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -138,12 +138,23 @@ fi
 # Create a dedicated nginx config
 ynh_add_nginx_config
 
+#=================================================
+# UPGRADE PHP7.3
+#=================================================
+
+if [ "$(lsb_release --codename --short)" = "buster" ]; then
+	pkg_dependencies="$pkg_dependencies $extra_pkg_dependencies"
+else
+	ynh_print_info --message="Upgrading php${php_version}..."
+	ynh_install_php --phpversion="${php_version}" --package="$extra_pkg_dependencies"
+fi
+
 #=================================================
 # UPGRADE DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Upgrading dependencies..." --time --weight=1
+ynh_print_info --message="Upgrading dependencies..."
 
-ynh_install_php --phpversion=${php_version} --package="$pkg_dependencies"
+ynh_install_app_dependencies "$pkg_dependencies"
 
 #=================================================
 # CREATE DEDICATED USER