<properties>
<java.version>11</java.version>
<springfox.version>2.9.2</springfox.version>
- <immutable.version>2.7.1</immutable.version>
+ <immutable.version>2.7.4</immutable.version>
<sdk.version>1.1.6</sdk.version>
<swagger.version>2.0.0</swagger.version>
<json.version>20180130</json.version>