diff --git a/pyproject.toml b/pyproject.toml
index 1a4be6e..bc4d8fe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -124,7 +124,7 @@ pytest-loguru = "^0.4.0"
 optional = true
 
 [tool.poetry.group.docs.dependencies]
-sphinx = "7.4.7"
+sphinx = "8.1.3"
 pydata-sphinx-theme = "^0.14.0"
 sphinx-hoverxref = "^1.3.0"
 sphinx-notfound-page = "^1.0.0rc1"