Google play services and network operations

I want to use Google play services version 6.1 and if I use this version I am getting crash on Android 4.4.4 (Google play services installed version 6.1 on this device).

Crash log:

 A/libc: Fatal signal 11 (SIGSEGV) at 0x000000b4 (code=1), thread 4143 (ion-ion)

I am using this library for network operations:

https://github.com/koush/ion

And this crash happens when I do a network request.

If I update the Google Play services to latest version the crash is disappearing.

What can be cause to this problem?

In addition to my comments on the question, here is how to add the dependency. Change the version to what ever it is you are using to build the project (one that you have on your system and you think is enough)

dependencies {
    compile 'com.google.android.gms:play-services:8.3.0'
}