--- pyproject.toml.orig	2024-05-08 09:19:58 UTC
+++ pyproject.toml
@@ -1,7 +1,7 @@ requires = [
 [build-system]
 requires = [
-   "setuptools>=69.5.1",
-   "setuptools_scm[toml]>=8.1.0"
+   "setuptools>=61",
+   "setuptools_scm[toml]>=8.0.4"
 ]
 build-backend = "setuptools.build_meta"
 
@@ -22,7 +22,7 @@ dependencies = [
     "fonttools >=4.40.0",
     "ufoLib2 >=0.11.1",
     "openstep-plist >=0.2.2",
-    "glyphsLib >=6.7.1",
+    "glyphsLib >=6.3.0",
     "fontfeatures >= 1.8.0",
     "vfbLib >= 0.6.4",
 ]