Could not find a version that satisfies the requirement coremltools==3.4

[Euston1996]

There is a dependency error when pip install:
ERROR: Could not find a version that satisfies the requirement coremltools==3.4 (from versions: 0.8, 4.0b1, 4.0b2, 4.0b3, 4.0b4, 4.0, 4.1, 5.0b1, 5.0b2, 5.0b3, 5.0b4, 5.0b5, 5.0, 5.1.0, 5.2.0, 6.0b1, 6.0b2, 6.0, 6.1, 6.2, 6.3.0, 7.0b1, 7.0b2, 7.0, 7.1, 7.2, 8.0b1, 8.0b2, 8.0)
ERROR: No matching distribution found for coremltools==3.4

[Euston1996]

This can be solved by updating coremltools>=4.0