Problem installing yii2-iconpicker

[vpadhariya]

Getting following error when I try to install

`Problem 1

• The requested package insolita/yii2-iconpicker * is satisfiable by insolita/yii2-iconpicker[dev-master] but those are rejected by your minimum-stability. `

in my composer.json file I have steup like this.

"require": { "php": ">=5.4.0", "yiisoft/yii2": ">=2.0.6", "yiisoft/yii2-bootstrap": "", "yiisoft/yii2-swiftmailer": "", "yiisoft/yii2-jui": "~2.0.0", "yiidoc/yii2-redactor": "", "persianyii/yii2-image": "dev-master", "vova07/yii2-fileapi-widget": "", "insolita/yii2-iconpicker": "*" },

Please let me know what should I do in order to get it installed.