This dataset comprises the age-depth model of Lake Kyutyunda, which is an updated version of the age-depth correlation from Biskaborn et al. (2016) with refined correlation between the core segments, based on the IntCal20 calibration curve compiled in the R package 'Bacon'. The age-depth model covers the last 39.000 years.The dataset is the output of the bacon run and contains information about the depth of the sediment core PG2023 and the corresponding minimum, maximum, median, and mean ages in calibrated years ka BP.