According to The Montreal Gazette
Donald Keith, the dog's owner, said he took his pet to the church because he had heard animals were welcome.
"The minister said, 'Come up and take communion', and Trapper came up with me and the minister gave him communion as well," said Mr Keith.
He claimed that one member of the congregation was unhappy and complained to the archbishop. The dog has since been banned from receiving Holy Communion.
Hopefully he didn’t drink from the cup but only enjoyed one of the biscuits.