Amazon is increasing pay for its contract delivery drivers as it faces increased scrutiny from labor unions and lawmakers. The company says it’s boosting pay for drivers who deliver packages from its warehouses to customers’ homes, as part of its Flex program, by $1 to $2 per hour, depending on the region. The increase comes amid high profile efforts by labor activists to unionize Amazon workers, the latest of which are underway in New York and Alabama. Amazon has long faced criticisms over labor practices and working conditions, but this move shows the company taking steps to address some of those concerns.