diff --git a/CHANGES.txt b/CHANGES.txt
index 88960fab6..d884c00ae 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -149,8 +149,7 @@ Build/CI
 * Skip test_dont_crash_on_click on windows/pyqt (#666)
 * Cleanup ci module and setup (#695)
 * Unskip no longer failing test (#714)
-* Add pyproject.toml specifying numpy and cython as build deps (#730)
-* Add pyproject.toml to MANIFEST.in (#747)
+* Add pyproject.toml specifying numpy and cython as build deps (#730, #747, #779)
 
 Release 4.8.0
 -------------
diff --git a/pyproject.toml b/pyproject.toml
index 06ae32aac..42eecc8f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
-requires = ["cython", "numpy", "setuptools", "wheel"]
+requires = ["cython", "oldest-supported-numpy", "setuptools", "wheel"]
 build-backend = "setuptools.build_meta"