Incompatible checksum error

I see the following error when trying to load the pretrained model.

```
    tokenizer=pickle.loads(tokenizer_buffer.read()),
  File "stringsource", line 6, in spacy.pipeline.trainable_pipe.__pyx_unpickle_TrainablePipe
_pickle.PickleError: Incompatible checksums (102742709 vs 0x417ddeb = (cfg, model, name, vocab))
```

Am I missing something?