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<@ULVA73B9P> after Updating prefect (*3.6.16* -&gt; 3.6.17), I have some errors with griffe dependency :
from prefect.blocks.core import Block
../../../Library/Caches/pypoetry/virtualenvs/iguazu-zSPJHTsc-py3.14/lib/python3.14/site-packages/prefect/blocks/__init__.py:3: in &lt;module&gt;
  import prefect.blocks.notifications as notifications
../../../Library/Caches/pypoetry/virtualenvs/iguazu-zSPJHTsc-py3.14/lib/python3.14/site-packages/prefect/blocks/notifications.py:12: in &lt;module&gt;
  from prefect.blocks.abstract import NotificationBlock, NotificationError
../../../Library/Caches/pypoetry/virtualenvs/iguazu-zSPJHTsc-py3.14/lib/python3.14/site-packages/prefect/blocks/abstract.py:20: in &lt;module&gt;
  from prefect.blocks.core import Block
../../../Library/Caches/pypoetry/virtualenvs/iguazu-zSPJHTsc-py3.14/lib/python3.14/site-packages/prefect/blocks/core.py:27: in &lt;module&gt;
  from griffe import Docstring, DocstringSection, DocstringSectionKind, Parser, parse
E  ModuleNotFoundError: No module named 'griffe'

:white_check_mark: thought for 124.4 seconds

Thanks for the details. This error means `griffe` isn’t present in the environment that’s importing `prefect.blocks`. In Prefect 3.x, `griffe` is a core dependency used for parsing block docstrings/metadata, and 3.6.17 relaxed the upper bound to allow newer `griffe` versions — it did not remove it. So it should be installed automatically, but a resolver/cache/compatibility issue can leave it out.

Likely causes
- Poetry lock/cache didn’t refresh when you upgraded Prefect
- Python version compatibility (your path shows py3.14). Prefect and/or griffe may not (yet) support 3.14, which can interfere with resolution

Quick fixes to try
1) Refresh your Poetry lock and install
```
poetry lock --refresh
poetry install
```

2) Explicitly add griffe (safe to do; matches Prefect’s requirement)
```
poetry add "griffe&gt;=0.49,&lt;3"
```

3) Verify it’s present
```
poetry show griffe
poetry run python -c "import griffe, prefect, sys; print('griffe ok', prefect.__version__, sys.version)"
```

4) If you’re on Python 3.14, try a supported version (e.g., 3.11 or 3.12). If 3.14 isn’t supported by `griffe` yet, Poetry may skip it or fail to resolve correctly.

For Docker images (Poetry-managed) pushed to GAR
- Rebuild the image after refreshing the lockfile or adding `griffe`
- Push and redeploy so your workers pull the updated image

If you need a temporary workaround while sorting the environment, you can pin Prefect back to 3.6.16 in your `pyproject.toml`, then run `poetry lock --refresh &amp;&amp; poetry install`.

If this persists, can you share:
- `python -V` (inside the Poetry venv)
- `poetry show prefect griffe`
- Relevant bits of your `pyproject.toml` (dependencies section)

I can then advise on the exact version constraints to use.