diff --git a/pyproject.toml b/pyproject.toml
index 4ee54f58..c7edf3e4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,7 +77,7 @@ dev = [
   "twine==6.1.0",
 ]
 docs = [
-  "sphinx==8.2.1",
+  "sphinx==8.2.3",
 ]
 tests = [
   "numpy==2.2.3 ; sys_platform == 'linux' and python_version == '3.13'",