Despite older people's increasing use of social media (SM), there is relatively little research investigating the impact of SM use on wellbeing in the ageing population. This study investigates the relationship between SM use and life satisfaction, a key dimension of wellbeing, in three age groups. We focus on the Italian case, which is particularly relevant because Italy is one of the countries both with the highest incidence of older people and the lowest uptake of SM in Europe. Applying linear regression modelling techniques, we analyse data from the 2018 Multipurpose Survey – Aspects of Everyday Living, a large probability-based household survey. For two age groups, we find a positive relationship between SM use and life satisfaction which weakens after controlling for older people's demographic and socio-economic characteristics, health conditions and social network characteristics. Given the grey digital divide that still exists in some European countries, we conclude with a call for urgent interventions to remove the hurdles that prevent frail older people from enjoying the benefits of an active ageing, fully exploiting the potential of SM use.