Cannot set Salary Unit to MONTH

Hi, thanks very useful plugin.

I cannot set Salary Unit to MONTH.
I set MONTH and save, change the value to YEAR.

edit source file below, I resolved.

file: admin\partials\civic-job-posting-optional-fields.php
Line:147

before:
<option value=”YEAR” <?php selected( $salary_unit, ‘MONTH’ ); ?>><?php _e( ‘YEAR’, ‘civic-job-posting’ ); ?></option>

after:
<option value=”YEAR” <?php selected( $salary_unit, ‘YEAR’ ); ?>><?php _e( ‘YEAR’, ‘civic-job-posting’ ); ?></option>