diff --git a/package.json b/package.json
index 6c7fec6..a8077eb 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
 	"author": "aureooms",
 	"devDependencies": {
 		"aureooms-js-graph-spec": "^5.0.0",
-		"aureooms-js-itertools": "^1.2.0",
+		"aureooms-js-itertools": "^3.0.0",
 		"aureooms-node-package": "^6.0.1"
 	},
 	"dependencies": {},