Update one row in the table, using liquibase

The above answers are overly complicated, for most cases this is enough:

<changeSet author="name" id="123">
    <update tableName="SomeTable">
        <column name="PropertyToSet" value="1" />
        <where>otherProperty = 'otherPropertyValue'</where>
    </update>
</changeSet>

important to use single quotes ‘ and not double quotes ” in the WHERE clause.