One of Japan’s biggest union groups plans to seek wage increases of another 6% in next year’s pay negotiations, highlighting sustained pressure on employers to raise pay.

UA Zensen, a labor union with about 1.9 million members across sectors such as retail and restaurants, will seek a standard bump of 6% in overall wages in the talks culminating in March, maintaining its goal from this year, according to a draft plan released Wednesday.

The union has also set a slightly higher target of 7% for part-time workers to help narrow the wage gap with regular workers, the plan suggested. The group secured a 4.95% gain for regular workers and 5.75% increase for part-timer workers this year, according to their tally as of the end of June.