diff --git a/CHANGES.rst b/CHANGES.rst
index e19188168f..ff7453565c 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -128,6 +128,8 @@ flat_field
 general
 -------
 
+- Require numpy<2.0. [#8565]
+
 - Removed deprecated stdatamodels model types ``DrizProductModel``,
   ``MIRIRampModel``, and ``MultiProductModel``. [#8388]
 
diff --git a/pyproject.toml b/pyproject.toml
index 32c2b05a60..8ef1423212 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ dependencies = [
     "crds>=11.17.14",
     "drizzle>=1.15.0",
     "gwcs>=0.21.0,<0.22.0",
-    "numpy>=1.22",
+    "numpy>=1.22,<2.0",
     "opencv-python-headless>=4.6.0.66",
     "photutils>=1.5.0",
     "psutil>=5.7.2",