The yield on the 364-day T-bill was barely changed at 10.737 percent compared with 10.734 percent last week.
The bank offered bills worth a total 12 billion shillings ($118.58 million) and received bids worth 14.2 billion shillings.
It accepted bids worth 13.72 billion shillings.
Next week, the bank will offer 91-, 182- and 364-day bills worth a total of 16 billion shillings.