diff --git a/src/scraper/exhaustive.py b/src/scraper/exhaustive.py
index 2bbc06c..48dd803 100644
--- a/src/scraper/exhaustive.py
+++ b/src/scraper/exhaustive.py
@@ -7,7 +7,7 @@ import random
 import re
 import time
 from typing import Optional
-from urllib.parse import urljoin, urlparse, quote_plus
+from urllib.parse import urljoin, urlparse, quote, quote_plus
 
 import aiohttp
 import feedparser
@@ -294,27 +294,34 @@ class ExhaustiveScraper:
             await asyncio.sleep(random.uniform(1, 3))
 
     async def _seed_wikipedia(self):
-        """Search Wikipedia API for correct article URLs.
-        Tries English first, falls back to Spanish if no results found."""
+        """Siembra Wikipedia en AMBOS idiomas siempre, con búsqueda full-text
+        (list=search). El opensearch anterior era prefix-de-título y devolvía 0
+        para topics verbosos ("incidente ovni de Manises 1979") aunque el
+        artículo exista; y el break tras en dejaba es solo como fallback.
+        Cada idioma va aislado: un fallo no afecta al otro."""
         http = await self._get_http()
-        added = 0
 
         for lang in ("en", "es"):
             try:
                 api_url = (
-                    f"https://{lang}.wikipedia.org/w/api.php?action=opensearch"
-                    f"&search={quote_plus(self.topic)}&limit=10&format=json"
+                    f"https://{lang}.wikipedia.org/w/api.php?action=query"
+                    f"&list=search&srsearch={quote_plus(self.topic)}"
+                    f"&srlimit=8&format=json"
                 )
                 async with http.get(api_url) as resp:
                     data = await resp.json()
-                    urls = data[3] if len(data) > 3 else []
-                    for url in urls:
-                        if url:
-                            await self.db.add_source(self.session_id, url, "wikipedia", depth=0)
-                            added += 1
-                logger.info("Wikipedia seed", lang=lang, found=len(urls))
-                if added > 0:
-                    break  # English results found — no need to try Spanish
+                hits = data.get("query", {}).get("search", [])
+                added = 0
+                for h in hits:
+                    title = h.get("title")
+                    if not title:
+                        continue
+                    url = (f"https://{lang}.wikipedia.org/wiki/"
+                           f"{quote(title.replace(' ', '_'))}")
+                    await self.db.add_source(self.session_id, url, "wikipedia",
+                                             depth=0, title=title)
+                    added += 1
+                logger.info("Wikipedia seed", lang=lang, found=added)
             except Exception as e:
                 logger.warning("Wikipedia API seed failed", lang=lang, error=str(e))