Colorado’s Democrat governor said Thursday that he is providing state aircraft and vehicles to help with changing voting system passwords that were accidentally leaked on a state website.

The mistake comes amid skepticism of voting systems, even though U.S. election nationwide remain fair and reliable.

The passwords were left on a spreadsheet online for months, Colorado Secretary of State Jena Griswold announced on Tuesday. Now, local, state and federal agencies are working together to change the passwords by Thursday evening, and analyze logs to ensure there hasn’t been any tampering.