Installing pypdf==6.4.0 returns version 4.2.0

[albavilanova]

I am trying to upgrade all the modules of our software, I used pip install==6.4.0 and I am getting an error of cryptography when importing it. I checked the version of the installed module and it returns 4.2.0.

Environment

Which environment were you using when you encountered the problem?

$ python -m platform
Linux-4.4.120-92.70-default-x86_64-with-glibc2.22

$ python -c "import pypdf;print(pypdf._debug_versions)"
/home/bsc/bsc032781/.local/lib/python3.11/site-packages/pypdf/_crypt_providers/_cryptography.py:32: CryptographyDeprecationWarning: ARC4 has been moved to cryptography.hazmat.decrepit.ciphers.algorithms.ARC4 and will be removed from cryptography.hazmat.primitives.ciphers.algorithms in 48.0.0.
  from cryptography.hazmat.primitives.ciphers.algorithms import AES, ARC4
pypdf==4.2.0, crypt_provider=('cryptography', '46.0.3'), PIL=12.0.0

Code + PDF

This is a minimal, complete example that shows the issue:

import pypdf
/home/bsc/bsc032781/.local/lib/python3.11/site-packages/pypdf/_crypt_providers/_cryptography.py:32: CryptographyDeprecationWarning: ARC4 has been moved to cryptography.hazmat.decrepit.ciphers.algorithms.ARC4 and will be removed from cryptography.hazmat.primitives.ciphers.algorithms in 48.0.0.
  from cryptography.hazmat.primitives.ciphers.algorithms import AES, ARC4

No need for a PDF example, I am just trying to remove the import error.

Traceback

Same as before.

Thank you in advance.