diff --git a/conf/config.sample.yml b/conf/config.sample.yml
index d071523..c5a85c1 100644
--- a/conf/config.sample.yml
+++ b/conf/config.sample.yml
@@ -30,8 +30,8 @@ bindIP: 0.0.0.0
 db:
   type: mysql
   # PostgreSQL / MySQL / MariaDB / MS SQL Server only:
-  host: localhost
-  port: 3306
+  host: postgres
+  port: 5432
   user: __DB_NAME__
   pass: __DB_PWD__
   db: __DB_NAME__
diff --git a/manifest.json b/manifest.json
index 74cb63c..20f416c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -19,8 +19,7 @@
     },
     "multi_instance": true,
     "services": [
-        "nginx",
-        "mysql"
+        "nginx"
     ],
     "arguments": {
         "install" : [
diff --git a/scripts/backup b/scripts/backup
index 130811c..23fb154 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -51,10 +51,10 @@ ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
 #ynh_backup "/etc/php5/fpm/pool.d/$app.conf"
 
 #=================================================
-# BACKUP THE MYSQL DATABASE
+# BACKUP THE POSTGRESQL DATABASE
 #=================================================
 
-ynh_mysql_dump_db "$db_name" > db.sql
+ynh_psql_dump_db "$db_name" > db.sql
 
 #=================================================
 # SPECIFIC BACKUP
diff --git a/scripts/install b/scripts/install
index d880c3e..10599d9 100644
--- a/scripts/install
+++ b/scripts/install
@@ -100,7 +100,7 @@ ynh_install_app_dependencies redis-server
 ynh_install_nodejs 10
 
 #=================================================
-# CREATE A MYSQL DATABASE
+# CREATE A POSTGRESQL DATABASE
 #=================================================
 
 ### Use these lines if you need a database for the application.
@@ -108,13 +108,17 @@ ynh_install_nodejs 10
 ### The password will be stored as 'mysqlpwd' into the app settings,
 ### and will be available as $db_pwd
 ### If you're not using these lines:
-###		- Remove the section "BACKUP THE MYSQL DATABASE" in the backup script
-###		- Remove also the section "REMOVE THE MYSQL DATABASE" in the remove script
-###		- As well as the section "RESTORE THE MYSQL DATABASE" in the restore script
+###		- Remove the section "BACKUP THE POSTGRESQL DATABASE" in the backup script
+###		- Remove also the section "REMOVE THE POSTGRESQL DATABASE" in the remove script
+###		- As well as the section "RESTORE THE POSTGRESQL DATABASE" in the restore script
 
 db_name=$(ynh_sanitize_dbid $app)
-ynh_app_setting_set $app db_name $db_name
-ynh_mysql_setup_db $db_name $db_name
+db_pwd=$(ynh_string_random 30)
+ynh_app_setting_set "$app" psql_db "$db_name"
+ynh_app_setting_set "$app" psqlpwd "$db_pwd"
+ynh_psql_test_if_first_run
+ynh_psql_create_user "$db_name" "$db_pwd"
+ynh_psql_create_db "$db_name" "$db_name" "$db_pwd"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
diff --git a/scripts/remove b/scripts/remove
index ebe12c3..bb78a1b 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -51,11 +51,11 @@ ynh_use_nodejs
 ynh_remove_nodejs
 
 #=================================================
-# REMOVE THE MYSQL DATABASE
+# REMOVE THE POSTGRESQL DATABASE
 #=================================================
 
 # Remove a database if it exists, along with the associated user
-ynh_mysql_remove_db $db_user $db_name
+ynh_psql_remove_db "$db_name" "$db_name"
 
 #=================================================
 # REMOVE APP MAIN DIR
diff --git a/scripts/restore b/scripts/restore
index eeda022..53a54bd 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -55,12 +55,14 @@ ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
 ynh_restore_file "$final_path"
 
 #=================================================
-# RESTORE THE MYSQL DATABASE
+# RESTORE THE POSTGRESQL DATABASE
 #=================================================
 
-db_pwd=$(ynh_app_setting_get $app mysqlpwd)
-ynh_mysql_setup_db $db_name $db_name $db_pwd
-ynh_mysql_connect_as $db_name $db_pwd $db_name < ./db.sql
+ynh_install_app_dependencies postgresql postgresql-contrib
+ynh_psql_test_if_first_run
+ynh_psql_create_user "$db_name" "$db_pwd"
+ynh_psql_create_db "$db_name" "$db_name" "$db_pwd"
+ynh_psql_execute_file_as_root ./db.sql "$db_name"
 
 #=================================================
 # RECREATE THE DEDICATED USER