diff --git a/scripts/install b/scripts/install
index 4d3a9a4..4d7b69f 100755
--- a/scripts/install
+++ b/scripts/install
@@ -96,8 +96,7 @@ ynh_systemd_action --service_name=nginx --action=reload
 ynh_script_progression --message="Building Yunomonitor..."
 
 pushd "$final_path"
-	python3 -m venv venv
-	venv/bin/pip install --upgrade pip
+	python3 -m venv -- venv --system-site-packages --upgrade-deps
 	venv/bin/pip install pycryptodome
 popd
 
diff --git a/scripts/remove b/scripts/remove
index cbe3ac0..329aff2 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -45,7 +45,8 @@ ynh_secure_remove --file="$final_path"
 ynh_script_progression --message="Removing NGINX web server configuration..." --weight=1
 
 # Remove the dedicated NGINX config
-ynh_remove_nginx_config
+ynh_secure_remove --file="/etc/nginx/conf.d/$domain.d/000-$app.conf"
+ynh_systemd_action --service_name=nginx --action=reload
 
 #=================================================
 # REMOVE DEPENDENCIES
diff --git a/scripts/upgrade b/scripts/upgrade
index a056f42..e1f835c 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -106,9 +106,10 @@ ynh_install_app_dependencies $pkg_dependencies
 #=================================================
 ynh_script_progression --message="Building Yunomonitor..."
 
+ynh_secure_remove "$final_path/venv"
+
 pushd "$final_path"
-	python3 -m venv venv
-	venv/bin/pip install --upgrade pip
+	python3 -m venv -- venv --system-site-packages --upgrade-deps
 	venv/bin/pip install pycryptodome
 popd