bad class file

[Afler]

Hi @ozlerhakan
I've got the following Exception: "bad class file: .gradle\caches\modules-2\files-2.1\com.github.ozlerhakan\poiji\4.1.1\9537864434c9cdbecf1a8100db716488d3ecd2b6\poiji-4.1.1.jar(com/poiji/annotation/ExcelCell.class)
class file has wrong version 55.0, should be 52.0"
My project based on Java 8
Is there any way to fix?
Thanks

[Afler]

#257