diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index c1a5a4d..7ef78e0 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [ ubuntu-20.04, macOS-11, windows-2019 ]
+        os: [ ubuntu-20.04, macOS-12, windows-2019 ]
         python-version: [ '3.9', 'pypy3.9', '3.10', '3.11', '3.12' ]
       fail-fast: false
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5a98caa..7d36c1d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,39 +17,39 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ ubuntu-20.04, macOS-11, windows-2019 ]
+        os: [ ubuntu-20.04, macOS-12, windows-2019 ]
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-tags: 'true'
           fetch-depth: 0
 
       - name: Set up QEMU
         if: runner.os == 'Linux'
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
         with:
           platforms: all
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.9'
+
       - name: Cythonize C-extensions
         run: |
-          python3 -m pip install --upgrade pip cython==3.0.*
+          python3 -m pip install --upgrade pip cibuildwheel==2.19.2
+          python3 -m pip install -r requirements-dev.txt
           cythonize polyagamma/*.pyx
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.15.0
+        uses: pypa/cibuildwheel@v2.19.2
         with:
           package-dir: .
           output-dir: wheelhouse
           config-file: "pyproject.toml"
 
-      - name: Set up Python
-        if: ${{ matrix.os == 'ubuntu-20.04' }}
-        uses: actions/setup-python@v4.7.0
-        with:
-          python-version: '3.9'
-
       - name: Build source distribution
         if: ${{ matrix.os == 'ubuntu-20.04' }}
         run: |
@@ -65,23 +65,23 @@ jobs:
           name: wheels_and_sdist
           path: wheelhouse
           if-no-files-found: error
-
-  upload_pypi:
-    needs: [ build_wheels_and_sdist ]
-    runs-on: ubuntu-20.04
-    environment:
-      name: pypi
-      url: https://pypi.org/p/polyagamma
-    permissions:
-      id-token: write
-    steps:
-      - name: Pull built wheels and sdist
-        uses: actions/download-artifact@v3
-        with:
-          name: wheels_and_sdist
-          path: wheelhouse
-
-      - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@v1.8.10
-        with:
-          packages_dir: wheelhouse
+          #
+          #  upload_pypi:
+          #    needs: [ build_wheels_and_sdist ]
+          #    runs-on: ubuntu-20.04
+          #    environment:
+          #      name: pypi
+          #      url: https://pypi.org/p/polyagamma
+          #    permissions:
+          #      id-token: write
+          #    steps:
+          #      - name: Pull built wheels and sdist
+          #        uses: actions/download-artifact@v3
+          #        with:
+          #          name: wheels_and_sdist
+          #          path: wheelhouse
+          #
+          #      - name: Publish to PyPI
+          #        uses: pypa/gh-action-pypi-publish@v1.8.10
+          #        with:
+          #          packages_dir: wheelhouse
diff --git a/pyproject.toml b/pyproject.toml
index e94d76e..6fa9092 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,12 +7,12 @@ requires = [
     # the used version of python. This does not affect required numpy version at
     # installation time; `project.dependencies` is most relevant for required numpy
     # when installtng at user level.
-    "numpy==1.26.0; python_version=='3.12' and platform_python_implementation!='PyPy'",
-    "numpy==1.23.2; python_version=='3.11' and platform_python_implementation!='PyPy'",
-    "numpy==1.21.3; python_version=='3.10' and platform_python_implementation!='PyPy'",
-    "numpy==1.19.3; python_version=='3.9' and platform_python_implementation!='PyPy'",
+    "numpy==2.0.0; python_version=='3.12' and platform_python_implementation!='PyPy'",
+    "numpy==2.0.0; python_version=='3.11' and platform_python_implementation!='PyPy'",
+    "numpy==2.0.0; python_version=='3.10' and platform_python_implementation!='PyPy'",
+    "numpy==2.0.0; python_version=='3.9' and platform_python_implementation!='PyPy'",
     # PyPy specific requirements
-    "numpy==1.25.0; python_version=='3.9' and platform_python_implementation=='PyPy'",
+    "numpy==2.0.0; python_version=='3.9' and platform_python_implementation=='PyPy'",
 ]
 build-backend = "setuptools.build_meta"
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3ec7f7c..d921df4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,6 @@
 cython==3.0.*
-numpy==1.26.0
+numpy==2.0.0
 pre-commit==3.4.0
 pytest==7.4.0
 pytest-cov==4.1.0
+setuptools==70.3.0
diff --git a/tests/test_polyagamma.py b/tests/test_polyagamma.py
index f0f2484..524f665 100644
--- a/tests/test_polyagamma.py
+++ b/tests/test_polyagamma.py
@@ -172,7 +172,7 @@ def test_polyagamma_pdf_cdf(method, h, z):
     x = random_polyagamma(h, z, size=5000, method=method, random_state=rng)
     x.sort()
     d = polyagamma_pdf(x, h=h, z=z)
-    area_under_curve = np.trapz(d, x)
+    area_under_curve = np.trapezoid(d, x)
     # relative tolerance is set so that 0.998 can pass the tests.
     assert np.isclose(1.0, area_under_curve, rtol=1e-2)
 
@@ -181,7 +181,7 @@ def test_polyagamma_pdf_cdf(method, h, z):
     # calculate the cdf of the distribution at the mean of the samples
     cdf = polyagamma_cdf(xx, h=h, z=z)
     # estimate empirical cdf from the sampled and corresponding density
-    ecdf = np.trapz(d[mask], x[mask])
+    ecdf = np.trapezoid(d[mask], x[mask])
     # test if the empirical cdf is equal to the distribution's to 2 decimals
     assert np.allclose(ecdf, cdf, rtol=1e-2)