diff --git a/CITATION.cff b/CITATION.cff
index 5abaf1f928..3f4d284506 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -163,5 +163,6 @@ authors:
   given-names: "Daniel"
 title: "GEOSX"
 version: 1.1.0
+doi: "10.5281/zenodo.7151031"
 date-released: 2024-09-14
 url: "https://github.com/GEOS-DEV/GEOS"