gulpfile.js
function bump_version(cb) {
    gulp.src('./package.json')
        .pipe(bump({
            type: 'patch'
        }))
        .pipe(gulp.dest('./'));
    console.log('Version Bumped');
    cb();
}
function bump_version(cb) {
    gulp.src('./package.json')
        .pipe(bump({
            type: 'patch'
        }))
        .pipe(gulp.dest('./'));
    console.log('Version Bumped');
    cb();
}
function bump_version ( cb ) { gulp . src ( './package.json' ) . pipe ( bump ( { type : 'patch' } ) ) . pipe ( gulp . dest ( './' ) ) ; console . log ( 'Version Bumped' ) ; cb ( ) ; }
6.  increase the version in package.json
6 . increase the version in package . json