--- pyproject.toml.orig	2025-02-20 16:31:55 UTC
+++ pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
-requires = ["sphinx-theme-builder >= 0.2.0a7"]
-build-backend = "sphinx_theme_builder"
+requires = ["flit-core >= 3.9.0"]
+build-backend = "flit_core.buildapi"
 
 [tool.sphinx-theme-builder]
 node-version = "20.9.0"
@@ -36,8 +36,8 @@ dependencies = [
 
 requires-python = ">=3.9"
 dependencies = [
-  "sphinx>=6.1",
-  "pydata-sphinx-theme==0.15.4"
+  "sphinx>=5.3",
+  "pydata-sphinx-theme>=0.15.4"
 ]
 
 license = { file = "LICENSE" }