--- pyproject.toml.orig	2024-07-24 09:09:51 UTC
+++ pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
-requires = ["sphinx-theme-builder >= 0.2.0a10"]
-build-backend = "sphinx_theme_builder"
+requires = ["flit-core >= 3.9.0"]
+build-backend = "flit_core.buildapi"
 
 [tool.sphinx-theme-builder]
 node-version = "18.16.0"
@@ -15,7 +15,7 @@ dependencies = [
 requires-python = ">=3.8"
 dependencies = [
   "beautifulsoup4",
-  "sphinx >= 6.0,<9.0",
+  "sphinx >= 5.0,<9.0",
   "sphinx-basic-ng >= 1.0.0.beta2",
   "pygments >= 2.7",
 ]