diff --git a/src/db-migrate.js b/src/db-migrate.js
index 908cb75..2341696 100644
--- a/src/db-migrate.js
+++ b/src/db-migrate.js
@@ -586,8 +586,17 @@ async function migrate() {
       published_at = COALESCE(languages.published_at, EXCLUDED.published_at),
       greeting     = COALESCE(languages.greeting, EXCLUDED.greeting)
   `).catch(() => {});
-  // Deutsch wird separat angelegt → Begrüßung nachtragen
-  await query(`UPDATE languages SET greeting = 'Hallo' WHERE short_en = 'de' AND greeting IS NULL`).catch(() => {});
+  // Begrüßung robust nachtragen (das ON-CONFLICT-Update oben greift bei bereits
+  // existierenden en/sv-Zeilen nicht zuverlässig → hier explizit, idempotent).
+  await query(`
+    UPDATE languages
+       SET greeting = CASE short_en
+         WHEN 'de' THEN 'Hallo'
+         WHEN 'en' THEN 'Hi'
+         WHEN 'sv' THEN 'Hej'
+       END
+     WHERE short_en IN ('de', 'en', 'sv') AND greeting IS NULL
+  `).catch(() => {});
 
   // Seed bbox for watermelon test object (only if bbox_x is still NULL)
   await query(`