[1.0.1] ArgumentError: can't omit precision for a Float

[ilyacoding]

There is a error while trying to convert money.

Example:
Money.new(500, "BYN").exchange_to("EUR")

Error:

ArgumentError: can't omit precision for a Float.
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/money-open-exchange-rates-1.0.1/lib/money/bank/open_exchange_rates_bank.rb:329:in `BigDecimal'
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/money-open-exchange-rates-1.0.1/lib/money/bank/open_exchange_rates_bank.rb:329:in `calc_pair_rate_using_base'
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/money-open-exchange-rates-1.0.1/lib/money/bank/open_exchange_rates_bank.rb:171:in `get_rate'
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/money-6.9.0/lib/money/bank/variable_exchange.rb:110:in `exchange_with'
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/money-6.9.0/lib/money/money.rb:436:in `exchange_to'
	from (irb):3
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/railties-3.2.22/lib/rails/commands/console.rb:47:in `start'
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/railties-3.2.22/lib/rails/commands/console.rb:8:in `start'
	from /Users/ikovalenko/.rvm/gems/ruby-2.1.8/gems/railties-3.2.22/lib/rails/commands.rb:41:in `<top (required)>'
	from script/rails:6:in `require'
	from script/rails:6:in `<main>'