User Pool Risk ConfigurationAttachment does not work

Serverless Framework
1

I’m trying to deploy a configuration allowing my Cognito User Pool to enable Advanced security with the following configuration.
The deployment doesn’t fail, cloudFormation shows “Update Complete”. But when I go to the AWS console and look at this Cognito User Pool, it’s still showing as “Advanced security” disabled.

Is this AWS::Cognito:: UserPoolRiskConfigurationAttachment implemented in Serverless v3?

    myUserPool:
      Type: AWS::Cognito::UserPool
      ...
    myUserPoolClient:
      Type: AWS::Cognito::UserPoolClient
      DeletionPolicy: Retain
      Properties:
        ClientName: myClientName
        GenerateSecret: False
        UserPoolId:
          Ref: myUserPool
        PreventUserExistenceErrors: ENABLED
    myUserPoolRiskConfigurationAttachment:
      Type: AWS::Cognito::UserPoolRiskConfigurationAttachment
      Properties:
        UserPoolId:
          Ref: myUserPool
        ClientId: 
          Ref: myUserPoolClient
        CompromisedCredentialsRiskConfiguration:
          Actions:
            EventAction: BLOCK
          EventFilter:
            - SIGN_IN
            - PASSWORD_CHANGE
            - SIGN_UP
        AccountTakeoverRiskConfiguration:
          Actions:
            LowAction:
              Notify: true
              EventAction: NO_ACTION
            MediumAction:
              Notify: true
              EventAction: BLOCK
            HighAction:
              Notify: true
              EventAction: BLOCK