diff --git a/package.json b/package.json
index e759bde..96367c4 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
 		"aureooms-js-array": "^3.1.0",
 		"aureooms-js-compare": "^1.4.3",
 		"aureooms-js-functools": "^2.0.3",
-		"aureooms-js-itertools": "^1.1.1",
+		"aureooms-js-itertools": "^3.0.0",
 		"aureooms-js-random": "^1.0.1",
 		"aureooms-js-search": "^0.0.4",
 		"aureooms-js-sort": "^6.0.0"