serverless deploy threw error when trying to associate aws waf to aws api gateway

When serverless deploy tried to associate an aws waf to my aws api gateway, it threw this error:

Other than downgrading my node, serverless, plugin and SDK to older versions, anyone found a fix?

Thanks!

Karl

Environment: darwin, node 18.6.0, framework 3.22.0, plugin 6.2.2, SDK 4.3.2
Credentials: Local, "default" profile
Docs:        docs.serverless.com
Support:     forum.serverless.com
Bugs:        github.com/serverless/serverless/issues

Error:
TypeError: this.config.name.trim is not a function
    at AssociateWafPlugin.updateWafAssociation (/Users/kninh/node_modules/serverless-associate-waf/lib/index.js:58:66)
    at PluginManager.runHooks (/usr/local/lib/node_modules/serverless/lib/classes/plugin-manager.js:530:15)
    at async PluginManager.invoke (/usr/local/lib/node_modules/serverless/lib/classes/plugin-manager.js:565:9)
    at async PluginManager.run (/usr/local/lib/node_modules/serverless/lib/classes/plugin-manager.js:604:7)
    at async Serverless.run (/usr/local/lib/node_modules/serverless/lib/serverless.js:174:5)
    at async /usr/local/lib/node_modules/serverless/scripts/serverless.js:771:9

Serverless.yml

resources:
  Resources:
    WafAcl:
      Type: 'AWS::WAFv2::WebACL'  
      Properties:
         Scope: REGIONAL    
             

custom:
   associateWaf:
    name: !Ref WafAcl 
    version: Regional