diff --git a/apps/mempool/manifest.yml b/apps/mempool/manifest.yml
index efc15baf..9c2b6e48 100644
--- a/apps/mempool/manifest.yml
+++ b/apps/mempool/manifest.yml
@@ -30,7 +30,7 @@ app:
     
   ports:
     - host: 4080
-      container: 4080
+      container: 8080  # mempool-frontend nginx listens on 8080 (FRONTEND_HTTP_PORT=8080)
       protocol: tcp  # Web UI
     
   volumes:
diff --git a/releases/app-catalog.json b/releases/app-catalog.json
index b37ef09e..532a99c0 100644
--- a/releases/app-catalog.json
+++ b/releases/app-catalog.json
@@ -2913,7 +2913,7 @@
           "ports": [
             {
               "host": 4080,
-              "container": 4080,
+              "container": 8080,
               "protocol": "tcp"
             }
           ],