diff --git a/apps/strfry/manifest.yml b/apps/strfry/manifest.yml
index 301d2492..ef74ed72 100644
--- a/apps/strfry/manifest.yml
+++ b/apps/strfry/manifest.yml
@@ -198,7 +198,11 @@ app:
 
   health_check:
     type: http
-    endpoint: http://localhost:8090
+    # In-container probe: must target the CONTAINER port (7777), not the host
+    # mapping (8090), and 127.0.0.1 explicitly — `localhost` resolves to ::1
+    # inside the image while strfry binds IPv4 0.0.0.0 only (verified on .228:
+    # localhost:7777 refused, 127.0.0.1:7777/health = 200).
+    endpoint: http://127.0.0.1:7777
     path: /health
     interval: 30s
     timeout: 5s