the translation is not updated

I’m using the 3.8 version and despite I updated all the languages the answer is always “Some of your translations are out of date.”
Wordpress seems to update the language for wordpress-importer and everything seems right, but in the updates page there’s still “Some of your translations are out of date”.
Someone knows how to fix it?
thanks!

https://www.ads-software.com/plugins/wordpress-importer/