How can I change the overcommit_memory file?

Hello.

I’m testing paperspace, using notebooks. But my scripts are heavy and require a lot of RAM, there is a need to change the value of overcommit_memory from 0 to 1.
But when I execute echo 1 > /proc/sys/vm/overcommit_memmory, I always get permission_denied as output.

How, can I change the file?

Thanks.