Property `gap` appears to be spelled incorrectly

[timeshifter4eva]

Using gap property within scss files with no-misspelled-properties set to 1, results in the following warning:
no-misspelled-properties: 1

warning Property gap appears to be spelled incorrectly no-misspelled-properties

The scss block:

.steps-circle { 
    gap: 29px;
}

gulp version 4.0.2
gulp-sass 5.1.0
gulp-sass-lint 1.4.0