Social isolation and loneliness are problems faced by the elderly that might be aggravated due to quarantine during the coronavirus pandemic. This motivates a search demand for automatic technological solutions, such as chatbots, to address the problem, and establish a collaborative interaction between elderly and conversational agents. We analyze the use of conversational agents and the main types of personalization used during interacting with the elderly. We mapped 53 papers in 5 sources to answer 5 research questions that guided our study. Our findings show these solutions may have a positive impact on elderly's life.