The reward for information to help find a missing 10-year-old Quebec girl has been upped to $100,000.

Cédrika Provencher disappeared July 31 from her Trois-Rivières neighbourhood after reportedly helping a man look for a lost dog.

Montreal-based charitable group Sun Youth Organization said the original reward of $80,000 has been increased by 25 per cent after the agency received a private donation. 

The original reward expires at midnight Monday, but the $100,000 offer will be in effect until Feb. 29.

Sun Youth director of emergency services Tommy Kulczyk said the reward money sends an important message to the public. "It was important at this point to pass a clear message that the population and the business sector are still as confident as they were at the beginning of this investigation that Cédrika Provencher will be found."

Cédrika's parents have made several emotional pleas to the public to help find their daughter, and police followed up on thousands of tips from across the country, but admit they have little idea of what happened to Cédrika.

Provincial police ensured they're committed to finding her but they don't have any new leads. One of the more credible tips came from the Gaspé, where Cédrika was reportedly spotted in a restaurant in Chandler.

In the fall, investigators released a rudimentary description of a vehicle spotted in the neighbourhood the day the girl disappeared off the street.

Police weren't able to produce a computerized image of the driver and suspect because they said they didn't have enough information.

With files from the Canadian Press