[Help] Block sinking to another block

You can see it on this screenshot:
http://cl.ly/353v262k2h220e2g0v3f
Blue block sinking to brown block. I have gravity set in scene. How can I fix it? I think its all about dentisity, friction, etc... But I can't find correct settings
Thanks.
http://cl.ly/353v262k2h220e2g0v3f
Blue block sinking to brown block. I have gravity set in scene. How can I fix it? I think its all about dentisity, friction, etc... But I can't find correct settings

Thanks.
Comments
also raise the density to somethign super high like 50000. add more if you need to