diff --git a/apps.json b/apps.json
index bd0eac32..0eb1d5f1 100644
--- a/apps.json
+++ b/apps.json
@@ -1016,6 +1016,13 @@
         "state": "working",
         "url": "https://github.com/yunohost-apps/mailman_ynh"
     },
+    "mailman3": {
+        "branch": "master",
+        "maintained": true,
+        "revision": "HEAD",
+        "state": "inprogress",
+        "url": "https://github.com/YunoHost-Apps/mailman3_ynh"
+    },
     "mantis": {
         "branch": "master",
         "level": 1,