diff --git a/scripts/install b/scripts/install
index ad5f66c..aa453da 100644
--- a/scripts/install
+++ b/scripts/install
@@ -117,7 +117,13 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Building app..."
 
-ynh_add_systemd_config
+ynh_app_setting_set --app=$app --key=final_path --value=$final_path
+mkdir -p "$final_path"
+
+pushd $final_path
+	mkdir -p .venv
+	PIPENV_VENV_IN_PROJECT="enabled" PIPENV_SKIP_LOCK=true ynh_exec_warn_less python3 -m pipenv install jupyterlab==$jupyterlab_version jupyterhub notebook jupyterhub-ldapauthenticator pyzmq --three
+popd
 
 #=================================================
 # ADD A CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index f22f92a..49a3a5f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -127,8 +127,8 @@ then
 	ynh_script_progression --message="Building app..." --weight=160
 
 	pushd $final_path
-		PIPENV_VENV_IN_PROJECT="enabled" PIPENV_SKIP_LOCK=true  ynh_exec_warn_less python3 -m pipenv install jupyterlab==$jupyterlab_version jupyterhub notebook jupyterhub-ldapauthenticator pyzmq
-		ynh_exec_warn_less python3 -m pipenv run jupyterhub upgrade-db
+		mkdir -p .venv
+		PIPENV_VENV_IN_PROJECT="enabled" PIPENV_SKIP_LOCK=true ynh_exec_warn_less python3 -m pipenv install jupyterlab==$jupyterlab_version jupyterhub notebook jupyterhub-ldapauthenticator pyzmq
 	popd
 fi