source command didn't export variables to the zsh environment using shell script

I have a really simple shell script which work really well on bash and export the varialbes to the current bash enviornment but unfortunately it didn't export the variables to the zsh enviornment.

#!/bin/bash
export AWS_ACCESS_KEY_ID=$(echo $RESULT | jq --raw-output .Credentials.AccessKeyId)
export AWS_SECRET_ACCESS_KEY=$(echo $RESULT | jq --raw-output .Credentials.SecretAccessKey)
export AWS_SECURITY_TOKEN=$(echo $RESULT | jq --raw-output .Credentials.SessionToken)

and I am running this script like this:

source myscript.sh

OR

. ./myscript.sh

Please advise, that how I can make it work on the zsh environment?