SNAPSHOT dependencies doesn't work with specifying jar file name.

[Pak, Young-rok]

I defined dependecy like this:
        <dependency>
            <groupId>ibatis</groupId>
            <artifactId>ibatis-nhn</artifactId>
            <version>SNAPSHOT</version>
            <jar>ibatis-2.jar</jar>
            <type>jar</type>
            <properties>
                <war.bundle>true</war.bundle>
            </properties>
        </dependency>

I want maven to check the timestamp and redownload if ibatis-2.jar in remote 
repository is newer, but it doesn't work. maven just tried to compile with current 
ibatis-2.jar in local repository. how can I make it work as I wanted? is there another 
way?