How can I find out what's artifact is downgrading a dependency?

Gradle v3.4.1

I have the following when I run a dependency tree

+--- project :zift-core
| ....
|    +--- com.hazelcast:hazelcast:4.0.1 -> 3.6.8

I even have this in my build.gradle file

dependencies {
    compile("com.hazelcast:hazelcast:4.0.1") {
      force = true
    }
}

How can I find out what artifact is downgrading the version to 3.6.8?

Thanks