In younger adults dealing with frequent interruptions leads to improved performance when resuming a task after an interruption and slower performance in uninterrupted tasks. This indicates a shift towards a proactive mode of cognitive control to deal with that expected interference (Dual mechanism of control framework, DMC, Braver, 2012). It was suggested that age-related decline is more prominent in the tasks requiring proactive mode implying that older adults might not benefit from high interruption frequency when resuming the task, but also not show a slowdown in uninterrupted tasks as younger adults. To investigate this assumption, in the present study two groups of older adults (mean age 75 years old) performed a serial five-step task (primary task) which was interrupted by a classification task either in 25% of primary tasks (Group 1) or in 75% of tasks (Group 2). After completion of the interruption task, resuming the primary task at the correct step was required. Dependent variables were response times and rates of sequence errors (deviations from the prescribed order of steps), measured at the step after an interruption (resumption performance) and in the uninterrupted steps. The results revealed that resumption performance was faster in the high-frequency group and more accurate than in the low-frequency group. At the same time, uninterrupted performance was slower in the high-frequency group compared to the low-frequency group. The results suggest that older adults are able to employ a proactive mode of cognitive control under high interruption frequency in a similar way as younger adults.