diff --git a/pyproject.toml b/pyproject.toml
index 8fd226c7..98103093 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ tests = [
     "setuptools==69.5.1",
 ]
 doc = [
-    "Sphinx==7.2.6",
+    "Sphinx==7.3.7",
     "ansys-sphinx-theme==0.15.2",
     "sphinx-copybutton==0.5.2",
     "sphinx_design==0.5.0",