diff --git a/manifest.json b/manifest.json
index 9d44a11..44220f3 100755
--- a/manifest.json
+++ b/manifest.json
@@ -5,7 +5,7 @@
     "description": {
         "en": "Federated blogging application"
     },
-    "version": "0.2.0~ynh1",
+    "version": "0.2.0~ynh2",
     "url": "https://baptiste.gelez.xyz/",
     "license": "AGPL-3.0-only",
     "maintainer": {
diff --git a/scripts/upgrade b/scripts/upgrade
index 10f049d..4a25c82 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -118,6 +118,16 @@ ynh_system_user_create "$app" "$final_path"
 # ...
 #=================================================
 
+#=================================================
+# CLOSE A PORT
+#=================================================
+
+if yunohost firewall list | grep -q "\- $port$"
+then
+	echo "Close port $port" >&2
+	yunohost firewall disallow TCP $port 2>&1
+fi
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK PLUME SOURCE
 #=================================================