diff --git a/CITATION.cff b/CITATION.cff
index 226a1de..1042b6d 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -13,4 +13,4 @@ authors:
 keywords:
   - computational geosciences
   - high-performance computing
-license: MIT
+license: GPL-3.0