diff --git a/pyproject.toml b/pyproject.toml
index ef97a848..a9fdc67e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ ruff = ">=0.4.8"
 optional = true
 
 [tool.poetry.group.docs.dependencies]
-sphinx = ">=6.1.3,<8.0.0"
+sphinx = ">=8.0.2,<8.1.0"
 sphinx-autodoc-typehints = ">=1.22,<3.0"
 sphinxcontrib-programoutput = "^0.17"
 numpydoc = "^1.5.0"