My toddler doesn’t like my parents

The Little Mermaid

He isn’t verbal but throws tantrum when we go in the car to see them and when we arrive their house. He also doesn’t like them being over our house for some odd reason. I don’t want to force my toddler to like my parents but my parents love him and want a relationship with him. They want to bond with him and enjoy their only grandchild. Not sure what can I do to help improve the situation…