diff --git a/doc/languages-frameworks/python.section.md b/doc/languages-frameworks/python.section.md
index 0849aacdf166..7e4f34e76875 100644
--- a/doc/languages-frameworks/python.section.md
+++ b/doc/languages-frameworks/python.section.md
@@ -469,7 +469,7 @@ are used in [`buildPythonPackage`](#buildpythonpackage-function).
   be added as `nativeBuildInput`.
 - `pipInstallHook` to install wheels.
 - `pytestCheckHook` to run tests with `pytest`. See [example usage](#using-pytestcheckhook).
-- `pythonCatchConflictsHook` to check whether a Python package is not already existing.
+- `pythonCatchConflictsHook` to fail if the package depends on two different versions of the same dependency.
 - `pythonImportsCheckHook` to check whether importing the listed modules works.
 - `pythonRelaxDepsHook` will relax Python dependencies restrictions for the package.
   See [example usage](#using-pythonrelaxdepshook).