diff --git a/package.json b/package.json
index 27135a3..77c784c 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,9 @@
 		"is"
 	],
 	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
 	"license": "MIT",
 	"bugs": {
 		"url": "https://github.com/ljharb/is-bigint/issues"