diff --git a/config/settings.yml b/config/settings.yml
index fa17197..cc560d7 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -172,3 +172,13 @@ engines:
   - name: artic
     engine: artic
     shortcut: arc
+
+doi_resolvers:
+  oadoi.org: 'https://oadoi.org/'
+  doi.org: 'https://doi.org/'
+  doai.io: 'https://dissem.in/'
+  sci-hub.se: 'https://sci-hub.se/'
+  sci-hub.st: 'https://sci-hub.st/'
+  sci-hub.ru: 'https://sci-hub.ru/'
+
+default_doi_resolver: 'oadoi.org'
\ No newline at end of file