package management - How to meet depends requirements for libldap-2.4-2

I am trying to install the libldap2-dev package.

sudo apt-get install libldap2-dev

I get the following error:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libldap2-dev : Depends: libldap-2.4-2 (= 2.4.31-1+nmu2ubuntu8.2) but 2.4.31-1+nmu2ubuntu8.3 is to be installed
E: Unable to correct problems, you have held broken packages.

It looks like I need to install 2.4.31-1+nmu2ubuntu8.2 not 2.4.31-1+nmu2ubuntu8.3

I've tried:

sudo apt-get install libldap2-dev=2.4.31-1+nmu2ubuntu8.2

I get the same error when doing so.

I've also found this but am still having trouble: Here