Depending on the "features" added to the pom.xml file configuring embedmongo-maven-plugin, for macos the generated file name to download becomes:
https://fastdl.mongodb.org/osx/mongodb-osx-ssl-x86_64-4.4.1.tgz
https://fastdl.mongodb.org/osx/mongodb-osx-x86_64-4.4.1.tgz
Notice the "-osx-" in the filename. However, mongoDB now names the files as
mongodb-macos-x86_64-4.4.1.tgz.
It would be good for embedmongo-maven-plugin to take this into account.