Why this call to AddEventHandler is not working?

I have the following proof of concept classes:

    private class SourceMock
    {
        public event PropertyChangedEventHandler TestEvent;

        public void Raise()
        {
            if (this.TestEvent != null)
            {
                this.TestEvent(this, new PropertyChangedEventArgs("S"));
            }
        }
    }

    private class HandlerMock
    {
        public HandlerMock()
        {
        }

        public void PropertyHandler(object sender, PropertyChangedEventArgs e)
        {
        }
    }

Then if I do the following it works:

    SourceMock sourceMock = new SourceMock();
    HandlerMock handler = new HandlerMock();

    sourceMock.GetType().GetEvent("TestEvent").AddEventHandler(sourceMock, new PropertyChangedEventHandler(handler1.PropertyHandler));

But if do the following it does not work:

    SourceMock sourceMock = new SourceMock();
    HandlerMock handler = new HandlerMock();

    sourceMock.GetType().GetEvent("TestEvent").AddEventHandler(sourceMock, new EventHandler<PropertyChangedEventArgs>(handler1.PropertyHandler));

because I get the following exception:

System.ArgumentException: Object of type 'System.EventHandler`1[System.ComponentModel.PropertyChangedEventArgs]' cannot be converted to type 'System.ComponentModel.PropertyChangedEventHandler'.

I want to have a generic class for dealing with events and I cannot use delegates as generic types I have to use EventArgs which imposes me the second syntax (the non-working one).

Any ideas on how to overcome this?