diff --git a/package.json b/package.json
index eb4504a..7505262 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
 	},
 	"main": "src/index.js",
 	"scripts": {
-		"postinstall": "node bin/install-kiwix.mjs"
+		"postinstall": "node bin/install-kiwix.js"
 	},
 	"dependencies": {
 		"@ztimson/utils": "^0.30.7",