# Bisq won't open on 2020 Macbook Pro M1 **URL:** \ **Category:** Support\ **Created:** [January 21, 2021, 3:27am UTC](https://bisq.community/t/bisq-wont-open-on-2020-macbook-pro-m1/10284 "2021-01-21T03:27:35Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ft2323](https://bisq.community/letter_avatar/ft2323/32/6_22734026db12803ebb3e059622ac3534.png) [@ft2323](https://bisq.community/u/ft2323)\ **Post date:** [January 21, 2021, 3:27am UTC](https://bisq.community/t/bisq-wont-open-on-2020-macbook-pro-m1/10284/1 "2021-01-21T03:27:35Z")
I get this message on my Dec 2020 Macbook Pro M1: ![Screen Shot 2021-01-20 at 10.22.11 PM](https://bisq.community/uploads/default/original/2X/4/4da6ac7e9f8929ac250f427a79c1af348f431b67.png) How can this be fixed? ---
**Author:** ![MnM](https://bisq.community/user_avatar/bisq.community/mnm/32/257_2.png) [@MnM](https://bisq.community/u/MnM)\ **Post date:** [January 21, 2021, 9:23am UTC](https://bisq.community/t/bisq-wont-open-on-2020-macbook-pro-m1/10284/2 "2021-01-21T09:23:11Z")
This was just a couple posts under yours. I hope it helps. > [@Mac not starting Bisq](https://bisq.community/t/mac-not-starting-bisq/10279): > > Downloaded the app on my Mac and am not able to even open it. I get this error message: “Bisq” can’t be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information. Chrome downloaded this file today at 6:18 AM from bisq.network. Any ideas on how to solve this please? Thank you! ---
**Author:** ![ft2323](https://bisq.community/letter_avatar/ft2323/32/6_22734026db12803ebb3e059622ac3534.png) [@ft2323](https://bisq.community/u/ft2323)\ **Post date:** [January 21, 2021, 11:57am UTC](https://bisq.community/t/bisq-wont-open-on-2020-macbook-pro-m1/10284/3 "2021-01-21T11:57:53Z")
Yes, I saw that. However you referred to Mac OS Catalina, whereas my M1 has Mac OS Big Sur. Catalina is on Intel chips. Anyways, I thought there might be a difference. Thank you.