[Python] pip install fails due to hash mismatch

I am trying to install robot-framework package using below command:- pip download robotframework==6.1 --no-cache-dir

But I get error:-

pip download robotframework==6.1 --no-cache-dir
Collecting robotframework==6.1
Downloading robotframework-6.1-py3-none-any.whl (15 kB)
ERROR: THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS FILE. If you have updated the package versions, please update the hashes. Otherwise, examine the package contents carefully; someone may have tampered with them.
robotframework==6.1 from https://files.pythonhosted.org/packages/11/ff/3105ff09e62c980e67a5b6974c8ac9577b4c3bacbc10a90e6b3e40cfcbd1/robotframework-6.1-py3-none-any.whl#sha256=46b04648547eab6433ce107c4b40757aa8bea1e47bd86af9c0cff5546dac767e:
Expected sha256 46b04648547eab6433ce107c4b40757aa8bea1e47bd86af9c0cff5546dac767e
Got f41e296c6972ddd0e47b0361217f686104aa059edc28d5f39e0596e834e2dd5c


WARNING: You are using pip version 22.3; however, version 25.1.1 is available. You should consider upgrading via the 'C:\Program Files\Python310\python.exe -m pip install --upgrade pip' command.

even flag --no-cache-dir does not help. Python version I am using- 3.10

Tried upgrading pip version and purge command too:-

python.exe -m pip install --upgrade pip
Requirement already satisfied: pip in c:\program files\python310\lib\site-packages (22.0.4)
Collecting pip
Downloading pip-25.1.1-py3-none-any.whl.metadata (3.6 kB)
Downloading pip-25.1.1-py3-none-any.whl (1.8 MB)
---------------------------------------- 1.8/1.8 MB 500.2 kB/s eta 0:00:00
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 22.0.4
Uninstalling pip-22.0.4:
Successfully uninstalled pip-22.0.4
Successfully installed pip-25.1.1



pip download robotframework==6.1 --no-cache-dir
Collecting robotframework==6.1
Downloading robotframework-6.1-py3-none-any.whl.metadata (7.5 kB)
Downloading robotframework-6.1-py3-none-any.whl (15 kB)
ERROR: THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS FILE. If you have updated the package versions, please update the hashes. Otherwise, examine the package contents carefully; someone may have tampered with them.
unknown package:
Expected sha256 46b04648547eab6433ce107c4b40757aa8bea1e47bd86af9c0cff5546dac767e
Got add115f339596b8484979f242c29f086884717ba6602725c9bcfa91d45f9e596

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