how to update jdbc driver in maven project code example

Example 1: how to change maven java version in po,

<project>
...
 <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>
...
</project>

Example 2: where is maven update project

mvn clean install -U