diff --git a/pyproject.toml b/pyproject.toml
index 4ae5d615..b51a7f05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,8 +60,8 @@ all = [
     "ansys-fluent-parametric==0.7.1",
 ]
 doc = [
-    "Sphinx==5.3.0",
-    "ansys-sphinx-theme==0.9.7",
+    "Sphinx==6.1.3",
+    "ansys-sphinx-theme==0.9.8",
     "sphinx-copybutton==0.5.2",
     "sphinx-design==0.4.1",
 ]