diff --git a/src/app/elasticsearch/services/elasticsearch.service.ts b/src/app/elasticsearch/services/elasticsearch.service.ts
index 0b326bcd1f5c27490c3f79d2392a1d35a56303de..f0a78f88cbc548df34528b0aae13d73f9eecc535 100644
--- a/src/app/elasticsearch/services/elasticsearch.service.ts
+++ b/src/app/elasticsearch/services/elasticsearch.service.ts
@@ -257,7 +257,7 @@ export class ElasticsearchService {
         query: regex,
         fields: [
           'metadata-fr.title^7',
-          'data-fr.properties^3',
+          'data-fr.properties^4',
           'metadata-fr.abstract^6',
           'metadata-fr.keyword^5',
           'metadata-fr.lineage^4',