The makeover aims to emphasise the brand's Jamaican roots by featuring two of the island's national symbols on the label - a swallow-tailed hummingbird and the Lignum Vitae flower.
The new look is a "dramatic departure" from the brand's previous packaging, and helps to underline its "premium quality positioning" within the flavoured rum category, according to UK distributor J Wray & Nephew.
Marketing manager Mariam Ridley said: "An important part of the repackaging was to celebrate the brand's strong Jamaican heritage, while ensuring that its premium credentials were clearly communicated - something that this fabulous bottle really achieves."
Koko Kanu has 37.5 per cent abv and retails for £14.99.
J Wray & Nephew 020 7953 3808