Hey @JacquesThibs,
Sadly there is no DLC for version 3.1.0 the first DLC contains transformers 4.4.2.
Could elaborate a bit more on what you want to do? Maybe can find a workaround.
Additionally, it is always possible to provide a custom requirements.txt where you could downgrade transformers to 3.1.0.
Do you want to use this for training or inference?