The HFPAapproved a slate of changeson Thursday intended to addressmonths of controversyover the lack of diversity in its ranks.

By Saturday, A-list stars had begun to speak out as well.

Johansson’sAvengerscostarMark Ruffalojoined her, writing that the HFPA’s reforms were “discouraging” ina social media poston Friday.

Unveiling Of The New 2009 Golden Globe Statuettes

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“Now is the time to step up and right the wrongs of the past,” he added.

“So we’re stopping any activities with your organization until more meaningful changes are made.

Berk was subsequentlyexpelled from the group.

Golden Globes

HFPA members at the Golden Globes.Christopher Polk/NBC/NBCU Photo Bank via Getty Images

Representatives for the HFPA did not immediately respond to EW’s request for comment.