Mo' Creatures Mod

Hey. I was setting up a server to play with my friend with the Mo' Creatures mod. I installed the Mo' creatures mod on the server and started it up, but it said it was only running six mods. The forge is five mods, then the Mo' Creatures mod and the Custom Spawners mod. I tried to join the server and it said this; Mod Rejections [FMLMod:customspawner{3.11.4}, FMLMod:mocreatures{12.0.4}]
I'm very confused, have they updated the mods used since the past few weeks? Because I have custom spawners 3.11.3 and mo creatures 12.0.3, is that the reason and if so is there any way i could just make a server with those ones? Thanks.

Nevermind. I figured it out, I just had to download the new version.