Map country color cannot be changed on specific countries ( e.g 'Cote d\'Ivoire' / 'Democratic Republic of the Congo' )

[MONTYYYYY]

Certain African countries having the pink color, cannot be changed.
How can i change color?
e.g
['Cote d'Ivoire', null],
['Democratic Republic of the Congo', null],

Giving these countries a positive value does not make difference on map.
(link : https://react-google-charts.com/geo-chart)

version : "react-google-charts": "^3.0.15".

Please help.
Note: I pulled down the repo and checked if i am using the exact country right names.

<Chart
width={'500px'}
height={'300px'}
chartType="GeoChart"
data={[
['Country', 'Latitude'],
['Algeria', 36],
['Angola', -8],
['Benin', 6],
['Botswana', -24],
['Burkina Faso', 12],
['Burundi', -3],
['Cameroon', 3],
['Canary Islands', 28],
['Cape Verde', 15],
['Central African Republic', 4],
['Ceuta', 35],
['Chad', 12],
['Comoros', -12],
["Cote d'Ivoire", 6],
['Democratic Republic of the Congo', -3],
['Djibouti', 12],
['Egypt', 26],
['Equatorial Guinea', 3],
['Eritrea', 15],
['Ethiopia', 9],
['Gabon', 0],
['Gambia', 13],
['Ghana', 5],
['Guinea', 10],
['Guinea-Bissau', 12],
['Kenya', -1],
['Lesotho', -29],
['Liberia', 6],
['Libya', 32],
['Madagascar', null],
['Madeira', 33],
['Malawi', -14],
['Mali', 12],
['Mauritania', 18],
['Mauritius', -20],
['Mayotte', -13],
['Melilla', 35],
['Morocco', 32],
['Mozambique', -25],
['Namibia', -22],
['Niger', 14],
['Nigeria', 8],
['Republic of the Congo', -1],
['Réunion', -21],
['Rwanda', -2],
['Saint Helena', -16],
['São Tomé and Principe', 0],
['Senegal', 15],
['Seychelles', -5],
['Sierra Leone', 8],
['Somalia', 2],
['Sudan', 15],
['South Africa', -30],
['South Sudan', 5],
['Swaziland', -26],
['Tanzania', -6],
['Togo', 6],
['Tunisia', 34],
['Uganda', 1],
['Western Sahara', 25],
['Zambia', -15],
['Zimbabwe', -18],
]}
options={{
region: '002', // Africa
colorAxis: { colors: ['#00853f', 'black', '#e31b23'] },
backgroundColor: '#81d4fa',
datalessRegionColor: '#f8bbd0',
defaultColor: '#f5f5f5',
}}
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
mapsApiKey="YOUR_KEY_HERE"
rootProps={{ 'data-testid': '4' }}
/>

[MONTYYYYY]

it works short country codes. E.g if [{v: 'CI', f: 'Cote d'Ivoire'}, 15] it works