# ParaView for macOS 10.15.5 / Catalina
**URL:** https://discourse.paraview.org/t/paraview-for-macos-10-15-5-catalina/4790
**Category:** ParaView Support
**Created:** [July 9, 2020, 12:56pm UTC](https://discourse.paraview.org/t/paraview-for-macos-10-15-5-catalina/4790 "2020-07-09T12:56:52Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@jfavre](https://discourse.paraview.org/u/jfavre)
#### Post date: [July 9, 2020, 12:56pm UTC](https://discourse.paraview.org/t/paraview-for-macos-10-15-5-catalina/4790/1 "2020-07-09T12:56:52Z")
I have users on macOS Catalina saying that they cannot use 5.8 because of the error message:
“ParaView-5.8.0.app” can’t be opened because Apple cannot check it for malicious software.
I don’t use that particular OS, so I don’t know what advice to give. Can you provide some help? TIA
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [July 9, 2020, 1:36pm UTC](https://discourse.paraview.org/t/paraview-for-macos-10-15-5-catalina/4790/2 "2020-07-09T13:36:42Z")
I think @cory.quammen is working on that.
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 9, 2020, 1:41pm UTC](https://discourse.paraview.org/t/paraview-for-macos-10-15-5-catalina/4790/3 "2020-07-09T13:41:02Z")
Indeed, I just worked out how jump through Apple’s notarization hoops yesterday. I will notarize 5.8.0 and 5.8.1-RC1 and put them up on the website.
Without notarization, you get this error message. You can work around it with the instructions posted here: [https://support.apple.com/en-gb/guide/mac-help/mh40616/mac](https://support.apple.com/en-gb/guide/mac-help/mh40616/mac)