Apple may be planning to refresh its line of MacBook Air and MacBook Pro with Retina Display at WWDC in June, and retiring its Retina-less MacBook Pro, according to reports.

DigiTimes supply chain sources claim that the company will refresh its laptop lineup at the end of the second quarter.

MacTrast notes that Intel’s new Haswell processors are expected to be ready sometime around this summer. That report notes that while Apple has recently updated the MacBook Air and Retina MacBook Pro, "a Haswell refresh would reflect a more significant update to the MacBook line."

Intel’s new Haswell platform is due in June. Intel has a requirement that Haswell-based ultrabooks should have touch screens so once Haswell becomes available, hybrid tablets incorporating touch screens and keyboards, are likely to start hitting the market.

The news comes off the back of claims that Apple has seen weaker-than-expected sales of its 13in MacBook Pro.

Apple will only see "modest single-digit' shipment growth for its notebook line up in 2013, according to a DigiTimes report.

"The device's actual sales turn out to be weaker than expected, leaving the company still digesting its inventories in the first quarter," writes DigiTimes.

The sources suggest that the MacBook Pro's high price is pushing consumers away.

The release of the updated MacBook range should help to increase orders, notes DigiTimes.

However, earlier this year KGI Securities analyst Ming-Chi Kuo claimed that Apple is planning to retire its non-Retina MacBook Pro in the third quarter of 2013, replacing it with a lower-priced all-Retina lineup.

Follow Karen Haslam on Twitter / Follow MacworldUK on Twitter 

Related:

Apple to retire non-Retina MacBook Pro later this year - analyst

If Steve Jobs was right and this is a post-PC era, why did Google release the Chromebook?

Apple patent round up: Street View-like Maps, MacBook-iPad hybrid, original Mac mini and more

Apple forced to change Retina MacBook Pro tagline following launch of Google's Chromebook Pixel

Yet more problems said to plague Retina MacBooks

New MacBook Air release date, rumours and leaked images

Buy the cheapest MacBook Air: Best prices in stores, refurb deals, and free accessories