diff --git a/scripts/upgrade b/scripts/upgrade
index b25f4e8..d6bfcea 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -15,17 +15,6 @@ source /usr/share/yunohost/helpers
 
 upgrade_type=$(ynh_check_app_version_changed)
 
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
-
-#public_ip4="$(curl -s ip.yunohost.org)" || true
-#ynh_app_setting_set --app=$app --key=public_ip4 --value=$public_ip4
-
-#fingerprint=$(cat /etc/opt/simplex/fingerprint)
-#ynh_app_setting_set --app=$app --key=fingerprint --value=$fingerprint
-
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
@@ -51,6 +40,21 @@ chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 chmod +x $install_dir/smp-server
 
+#=================================================
+# SPECIFIC SETUP
+#=================================================
+
+pushd "$install_dir"
+	public_ip4="$(curl -s ip.yunohost.org)" || true
+	ynh_app_setting_set --app=$app --key=public_ip4 --value=$public_ip4
+	./smp-server init --no-password --ip $public_ip4 -y
+popd
+
+fingerprint=$(cat /etc/opt/simplex/fingerprint)
+ynh_app_setting_set --app=$app --key=fingerprint --value=$fingerprint
+
+chown -R $app:$app "/etc/opt/simplex"
+
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS
 #=================================================