cannot install tensorflow==1.4.1

[vbrover]

$ pip install tensorflow==1.4.1
Looking in indexes: https://artifactory.ncbi.nlm.nih.gov/artifactory/api/pypi/python-virtual-repo/simple
ERROR: Could not find a version that satisfies the requirement tensorflow==1.4.1 (from versions: 1.13.0rc1, 1.13.0rc2, 1.13.1, 1.13.2, 1.14.0rc0, 1.14.0rc1, 1.14.0, 1.15.0rc0, 1.15.0rc1, 1.15.0rc2, 1.15.0rc3, 1.15.0, 2.0.0a0, 2.0.0b0, 2.0.0b1, 2.0.0rc0, 2.0.0rc1, 2.0.0rc2, 2.0.0)
ERROR: No matching distribution found for tensorflow==1.4.1