diff --git a/scripts/install b/scripts/install
index cab5695..1fd1162 100755
--- a/scripts/install
+++ b/scripts/install
@@ -91,13 +91,10 @@ ynh_app_setting_set $app port $port
 #=================================================
 ynh_print_info "Adding Erlang repository..."
 
-wget https://packages.erlang-solutions.com/debian/erlang_solutions.asc
-apt-key add erlang_solutions.asc
-rm erlang_solutions.asc
 if [ "$(lsb_release --codename --short)" == "jessie" ]; then
-	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian jessie contrib"
+	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian jessie contrib" --key="https://packages.erlang-solutions.com/debian/erlang_solutions.asc"
 elif [ "$(lsb_release --codename --short)" == "stretch" ]; then
-	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian stretch contrib"
+	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian stretch contrib" --key="https://packages.erlang-solutions.com/debian/erlang_solutions.asc"
 fi
 ynh_package_update
 
diff --git a/scripts/restore b/scripts/restore
index 7779022..7c8e87d 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -88,13 +88,10 @@ chown -R "$app":"$app" "$final_path"
 #=================================================
 ynh_print_info "Adding Erlang repository..."
 
-wget https://packages.erlang-solutions.com/debian/erlang_solutions.asc
-apt-key add erlang_solutions.asc
-rm erlang_solutions.asc
 if [ "$(lsb_release --codename --short)" == "jessie" ]; then
-	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian jessie contrib"
+	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian jessie contrib" --key="https://packages.erlang-solutions.com/debian/erlang_solutions.asc"
 elif [ "$(lsb_release --codename --short)" == "stretch" ]; then
-	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian stretch contrib"
+	ynh_install_extra_repo --repo="deb http://packages.erlang-solutions.com/debian stretch contrib" --key="https://packages.erlang-solutions.com/debian/erlang_solutions.asc"
 fi
 ynh_package_update