Maven project version inheritance – do I have to specify the parent version?

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I have two projects: Parent project: A, Sub project: B

A/pom.xml:

<groupId>com.dummy.bla</groupId>
<artifactId>parent</artifactId>
<version>0.1-SNAPSHOT</version>
<packaging>pom</packaging>

And in B/pom.xml, I have:

    <parent>
        <groupId>com.dummy.bla</groupId>
        <artifactId>parent</artifactId>
        <version>0.1-SNAPSHOT</version>     
    </parent>

    <groupId>com.dummy.bla.sub</groupId>
    <artifactId>kid</artifactId>

I want B to inherit the version from parent, so the only place in my case I need to put 0.1-SNAPSHOT is A/pom.xml. But if i remove the <version>0.1-SNAPSHOT</version> from B/pom.xml under the parent section, maven complains about the missing version for the parent.

Is there a way I can just use ${project.version} or something like this to avoid having 01.-SNAPSHOT in both poms?

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