Monday marks Pope Francis’ 10th day in the hospital, making this equal to the longest hospitalization of his papacy.

Pope Francis has shown “a slight improvement” in his health while being hospitalized for double pneumonia, but he is still considered to be in critical condition. The 88-year-old has spent the last 10 days in a Rome hospital.

Pope Francis was in critical condition Saturday after he suffered a long asthmatic respiratory crisis that required high flows of oxygen, the Vatican said.