It comes after two of its off-duty officers were arrested for operating while intoxicated in December.
After a months-long investigation, one of the officers was suspended without pay for 30 days. The other was suspended for 15 days.
The department released a statement Thursday, it reads in part:
"The Sheboygan Police Department understands the importance of earning and maintaining the public's trust. Actions by department members that damage this trust will not be tolerated. We are committed to building strong community relationships and demonstrating our trustworthiness on a daily basis."