SqLite & Gradle

I've added SQLite in build.gradle:

dependencies {
        compile 'org.xerial:sqlite-jdbc:3.8.9.1'
    }

buildscript {
    repositories {
        jcenter()
        mavenCentral()      
    }
    dependencies {
        classpath 'org.xerial:sqlite-jdbc:3.8.9.1'
    }
}

Once I want to connect to SQLite DB in code:

 groovy.sql.Sql.newInstance(dbLocation, "org.sqlite.JDBC")

It complains that :

java.lang.ClassNotFoundException: org.sqlite.JDBC

What is the reason? How can I fix it?