SEP Client Some defination content are out of date

Hi 

We are using some client and servers intalled Virus and Spyware Protection. Client defination is updated.

I was cheking the SEPM some client defination are out of date  Like Download Protection Content  

Chek the client side

Client Connect to SEPM server.

Update the client defination 

But some defination isn't update.

How can solve this issues How ı can update like this cilients.