diff --git a/workers/loaders/doi-list.ini b/workers/loaders/doi-list.ini
index 20129fd2f..10abcf13e 100644
--- a/workers/loaders/doi-list.ini
+++ b/workers/loaders/doi-list.ini
@@ -31,7 +31,7 @@ path = value
 rule = required|string
 
 [URLConnect]
-url = fix('https://biblio-tools.services.inist.fr/v1/', env('provider', 'unpaywall'), '/works/expand').join('').toString()
+url = fix('https://biblio-tools.services.istex.fr/v1/', env('provider', 'unpaywall'), '/works/expand').join('').toString()
 timeout = 5000
 noerror = false
 retries = 5