I am trying to implement OpenAPI UI in my project with Helidon 2.6.6

Added the following dependencies in my pom.xml

        <dependency>
            <groupId>io.helidon.microprofile.openapi</groupId>
            <artifactId>helidon-microprofile-openapi</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>io.smallrye</groupId>
            <artifactId>smallrye-open-api-ui</artifactId>
            <version>2.0.0</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>io.helidon.integrations.openapi-ui</groupId>
            <artifactId>helidon-integrations-openapi-ui</artifactId>
            <scope>runtime</scope>
        </dependency>

getting the following error, some jar files are missing

Caused by: java.lang.NoClassDefFoundError: io/smallrye/openapi/ui/Option