diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index 812048e..4c3813c 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -64,9 +64,6 @@ jobs:
           CIBW_SKIP: "cp36-* cp37-* cp38-* pp* *-manylinux_i686 *-musllinux_i686 *-musllinux_aarch64 *-win32"
           CIBW_ARCHS: "${{ matrix.cibw_archs }}"
           CIBW_TEST_SKIP: "*_arm64 *_universal2:arm64"
-          # below only for building against unstable numpy
-          CIBW_BUILD_FRONTEND: "pip; args: --no-build-isolation"
-          CIBW_BEFORE_BUILD: "pip install --pre --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple numpy cython setuptools versioneer"
 
       - uses: actions/upload-artifact@v4
         with:
diff --git a/pyproject.toml b/pyproject.toml
index 988581c..9012fc2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,8 +1,7 @@
 [build-system]
 requires = [
     "wheel",
-    'numpy; python_full_version<"3.12.0rc1"',
-    'numpy>=1.26.0rc1; python_full_version>="3.12.0rc1"',
+    "numpy>=2.0.0rc1,<2.3",
     "setuptools>=42",
     "versioneer",
     "Cython>=3.0.0"