diff --git a/check_process b/check_process
index daa4523..fcd36a8 100644
--- a/check_process
+++ b/check_process
@@ -17,7 +17,7 @@
 		setup_nourl=0
 		setup_private=1
 		setup_public=1
-		;upgrade=1
+		upgrade=1
 		;upgrade=1	from_commit=CommitHash
 		backup_restore=1
 		multi_instance=1
diff --git a/scripts/upgrade b/scripts/upgrade
index 1cb67c9..5bcf83f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,8 +18,6 @@ app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
-language=$(ynh_app_setting_get --app=$app --key=language)
-admin=$(ynh_app_setting_get --app=$app --key=admin)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 
@@ -81,26 +79,6 @@ ynh_script_progression --message="Ensuring downward compatibility..." --time --w
 #	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 #fi
 
-### If nobody installed your app before 4.1,
-### then you may safely remove these lines
-
-# Cleaning legacy permissions
-if ynh_legacy_permissions_exists; then
-	ynh_legacy_permissions_delete_all
-
-	ynh_app_setting_delete --app=$app --key=is_public
-fi
-
-if ! ynh_permission_exists --permission="admin"; then
-	# Create the required permissions
-	ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
-fi
-
-# Create a permission if needed
-if ! ynh_permission_exists --permission="api"; then
-	ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --show_tile="false" --protected="true"
-fi
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -118,7 +96,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --time --weight=1
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+	ynh_setup_source --dest_dir="$final_path/pytition"
 fi
 
 # FIXME: this should be managed by the core in the future
@@ -146,44 +124,54 @@ ynh_script_progression --message="Upgrading dependencies..." --time --weight=1
 
 ynh_install_app_dependencies "${pkg_dependencies[@]}"
 
-#=================================================
-# PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Upgrading PHP-FPM configuration..." --time --weight=1
-
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config
-
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
-# ...
+# Upgrade virtualenv content
 #=================================================
+ynh_script_progression --message="Upgrading python dependencies..." --time --weight=1
+
+python3 -m venv --upgrade ENV_DIR
+(
+    set +o nounset
+    source "${final_path}/venv/bin/activate"
+    set -o nounset
+
+	python3 -m pip install -r requirements.txt --upgrade
+)
 
 #=================================================
-# UPDATE A CONFIG FILE
+# Update the configuration
 #=================================================
-ynh_script_progression --message="Updating a configuration file..." --time --weight=1
+ynh_script_progression --message="Adding configuration files..." --time --weight=1
+secret_key=$(generate_secret_key)
 
-### Same as during install
-###
-### The file will automatically be backed-up if it's found to be manually modified (because
-### ynh_add_config keeps track of the file's checksum)
+config_path="$final_path/pytition/pytition/pytition/settings/config.py"
+ynh_add_config --template="../conf/config.py" --destination="$config_path"
+chmod 400 "$config_path"
+chown $app:$app "$config_path"
 
-ynh_add_config --template="some_config_file" --destination="$final_path/some_config_file"
+ynh_add_config --template="../conf/uwsgi.yaml" --destination="$final_path/uwsgi.yaml"
+chmod 400 "$final_path/uwsgi.yaml"
+chown $app:$app "$final_path/uwsgi.yaml"
 
-# FIXME: this should be handled by the core in the future
-# You may need to use chmod 600 instead of 400,
-# for example if the app is expected to be able to modify its own config
-chmod 400 "$final_path/some_config_file"
-chown $app:$app "$final_path/some_config_file"
+#=================================================
+# Run app configuration
+#=================================================
+ynh_script_progression --message="Running app configuration..." --time --weight=1
 
-### For more complex cases where you want to replace stuff using regexes,
-### you shoud rely on ynh_replace_string (which is basically a wrapper for sed)
-### When doing so, you also need to manually call ynh_store_file_checksum
-###
-### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/some_config_file"
-### ynh_store_file_checksum --file="$final_path/some_config_file"
+ynh_exec_as $app bash -c "
+    set +o nounset
+    source '$final_path/venv/bin/activate'
+    set -o nounset
+    cd '$final_path/pytition/pytition'
+    export DJANGO_SETTINGS_MODULE=pytition.settings.config
+    python3 manage.py migrate
+    python3 manage.py collectstatic
+    python3 manage.py compilemessages
+"
+
+chown -R $app:www-data "$final_path/static"
 
 #=================================================
 # SETUP SYSTEMD
@@ -198,17 +186,17 @@ ynh_add_systemd_config
 #=================================================
 # SETUP LOGROTATE
 #=================================================
-ynh_script_progression --message="Upgrading logrotate configuration..." --time --weight=1
+# ynh_script_progression --message="Upgrading logrotate configuration..." --time --weight=1
 
-# Use logrotate to manage app-specific logfile(s)
-ynh_use_logrotate --non-append
+# # Use logrotate to manage app-specific logfile(s)
+# ynh_use_logrotate --non-append
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
 #=================================================
 ynh_script_progression --message="Integrating service in YunoHost..." --time --weight=1
 
-yunohost service add $app --description="A short description of the app" --log="/var/log/$app/$app.log"
+yunohost service add $app --description="Pytition uWSGI app $app" --log="/var/log/$app/$app.log"
 
 #=================================================
 # START SYSTEMD SERVICE
@@ -220,10 +208,10 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$ap
 #=================================================
 # UPGRADE FAIL2BAN
 #=================================================
-ynh_script_progression --message="Reconfiguring Fail2Ban..." --time --weight=1
+# ynh_script_progression --message="Reconfiguring Fail2Ban..." --time --weight=1
 
-# Create a dedicated Fail2Ban config
-ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
+# # Create a dedicated Fail2Ban config
+# ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
 
 #=================================================
 # RELOAD NGINX