[CI] lock numpy<1.12.0 for coreml itest
@@ -11,7 +11,7 @@ cd "$GIT_ROOT" || exit
# Install PyTorch (for training a model) and coremltools (to convert trained PyTorch model to CoreML).
# On Linux we'd might install torch==1.5.0+cpu torchvision==0.6.0+cpu but this runs on Mac.
-pip install coremltools==4.0b2 torch==1.5.0 torchvision==0.6.0 -f https://download.pytorch.org/whl/torch_stable.html
+pip install coremltools==4.0b2 numpy==1.19.5 torch==1.5.0 torchvision==0.6.0 -f https://download.pytorch.org/whl/torch_stable.html
pytest "$GIT_ROOT"/tests/integration/test_coreml_model_artifact.py --cov=bentoml --cov-config=.coveragerc
