Setting CNAME to integer instead of string throws error

[kaspergrubbe]

require 'sprinkle_dns'
require_relative 'test_perms'

client = SprinkleDNS::Route53Client.new(ACCESS_KEY_ID, SECRET_ACCESS_KEY)
sdns   = SprinkleDNS::Client.new(client)

sdns.entry("A", "beta.test.billetto.com", '88.80.188.143', 60, 'test.billetto.com')
sdns.entry("TXT", "test.test.billetto.com", Time.now.to_i, 60, 'test.billetto.com')

sdns.sprinkle!

Error:

Traceback (most recent call last):
	15: from example.rb:10:in `<main>'
	14: from /Users/kaspergrubbe/projects/sprinkle_dns/lib/sprinkle_dns/client.rb:72:in `sprinkle!'
	13: from /Users/kaspergrubbe/projects/sprinkle_dns/lib/sprinkle_dns/providers/route53_client.rb:65:in `change_hosted_zones'
	12: from /Users/kaspergrubbe/projects/sprinkle_dns/lib/sprinkle_dns/providers/route53_client.rb:65:in `each'
	11: from /Users/kaspergrubbe/projects/sprinkle_dns/lib/sprinkle_dns/providers/route53_client.rb:67:in `block in change_hosted_zones'
	10: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-route53-1.21.0/lib/aws-sdk-route53/client.rb:1035:in `change_resource_record_sets'
	 9: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/seahorse/client/request.rb:70:in `send_request'
	 8: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/seahorse/client/plugins/response_target.rb:23:in `call'
	 7: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/plugins/response_paging.rb:10:in `call'
	 6: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/plugins/param_converter.rb:24:in `call'
	 5: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/plugins/idempotency_token.rb:17:in `call'
	 4: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/plugins/jsonvalue_converter.rb:20:in `call'
	 3: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/seahorse/client/plugins/raise_response_errors.rb:14:in `call'
	 2: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/plugins/param_validator.rb:23:in `call'
	 1: from /Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/param_validator.rb:13:in `validate!'
/Users/kaspergrubbe/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/aws-sdk-core-3.48.3/lib/aws-sdk-core/param_validator.rb:33:in `validate!': expected params[:change_batch][:changes][0][:resource_record_set][:resource_records][0][:value] to be a String, got value 1556036081 (class: Integer) instead. (ArgumentError)