Lazio president Claudio Lotito has warned potential suitors that they would need to part with more than £15m to land Hernanes.
The Brazilian midfielder has recently been linked with a move away from the Stadio Olimpico, with Liverpool among other clubs said to be interested.
However, Lotto has expressed his desire to keep hold of the 28-year-old.
"I do not want to sell him, we will have to receive an indecent offer - £15m will not be enough," he told TMW.
Hernanes joined Lazio from Sao Paulo back in 2010.
