How should i use bc command

imageID=$(aws ecr describe-images --repository-name foo --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' | tr -d '"')
echo $imageID
newImageID=$(bc <<< "$imageID+1")
echo $newImageID
docker build -t image:$newImageID Dockerfile

I get this error when running locally

Parse error: bad expression
:1

and in github actions , I’m getting syntax error
(standard_in) 1: syntax error

What am i missing here?