Help text in french is not translated

Hello ! When I get the reCaptcha widget in french, and I have to fill the words appearing in an image, the help text is in english. The submit button and the title are ok, only the help text still shows ("Type your best guess of the text shown. To get a new challenge, click the reload icon. Learn more." instead of "Veuillez saisir le texte que vous arrivez à lire. Pour obtenir un nouveau texte, cliquez sur le bouton recharger. En savoir plus. -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.