Bufferutil dependency?

Hi!

I’m trying to upgrade from 1.8.3 -> 1.9.3

When I deploy on Galaxy I get errors with bufferutil
In the package.json I have
“bufferutil”: “^3.0.0”,

But the version that is deployed is 3.0.2 for some for me unknown reason.
And the deploy fails with this log:

bufferutil@3.0.2 install /app/bundle/programs/server/npm/node_modules/bufferutil
v10192020-10-03 19:01:08+02:00> prebuild-install || node-gyp rebuild
v10192020-10-03 19:01:08+02:00
v10192020-10-03 19:01:09+02:00prebuild-install info begin Prebuild-install version 2.2.2
v10192020-10-03 19:01:09+02:00prebuild-install info looking for local prebuild @ prebuilds/bufferutil-v3.0.2-node-v72-linux-x64.tar.gz
v10192020-10-03 19:01:09+02:00prebuild-install info looking for cached prebuild @ /root/.npm/_prebuilds/https-github.com-websockets-bufferutil-releases-download-v3.0.2-bufferutil-v3.0.2-node-v72-linux-x64.tar.gz
v10192020-10-03 19:01:09+02:00prebuild-install http request GET https://github.com/websockets/bufferutil/releases/download/v3.0.2/bufferutil-v3.0.2-node-v72-linux-x64.tar.gz
v10192020-10-03 19:01:09+02:00prebuild-install http 404 https://github.com/websockets/bufferutil/releases/download/v3.0.2/bufferutil-v3.0.2-node-v72-linux-x64.tar.gz
v10192020-10-03 19:01:09+02:00prebuild-install WARN install No prebuilt binaries found (target=12.16.1 runtime=node arch=x64 platform=linux)
v10192020-10-03 19:01:09+02:00make: Entering directory `/app/bundle/programs/server/npm/node_modules/bufferutil/build’
v10192020-10-03 19:01:09+02:00 CXX(target) Release/obj.target/bufferutil/src/bufferutil.o
v10192020-10-03 19:01:10+02:00In file included from …/node_modules/nan/nan.h:192:0,

How can I find out what module is using bufferutil?
And what version should work with node 12 (Meteor 1.9.3)?

It works locally on my Mac.

/Hans