Is there a way to force Google Play Services to Update?

[adamleonard]

I've been getting a lot of "Play Services has crashed" type messages that I'm hoping would be resolved with the update (as well as give me Google Assistant)

 

[jasonandrews25788]

you can install the APK manually, download it from APK mirror and choose the right variant.
Google Play services APKs - APKMirror
if don't know what variant to download you can use this app to determine your APK version:
Play Services Info APKs - APKMirror