What’s the best wau to answer “reason for leaving current job”

I am currently applying for a job. Can anyone help me to reword my reason for leaving this job a little better?

I have this drafted:

“I am looking for a new challenge and there are limited growth opportunities with my current employer. I would be happier with more responsibilities and this job role has offered just that”

Max 250 words

MANY THANKS IN ADVANCE

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