diff --git a/internal/core/bootstrap/resolver-blocked.txt b/internal/core/bootstrap/resolver-blocked.txt
index 5273692..586afbc 100644
--- a/internal/core/bootstrap/resolver-blocked.txt
+++ b/internal/core/bootstrap/resolver-blocked.txt
@@ -12,5 +12,3 @@ urn:
 http://d-nb.info/gnd/
 http://erlangen-crm.org/
 http://id.gnm.de/ont/
-http://www.zotero.org/
-https://api.zotero.org/