diff --git a/.github/workflows/wheel_tests_and_release.yml b/.github/workflows/wheel_tests_and_release.yml
index 8d25521f..ca49457c 100644
--- a/.github/workflows/wheel_tests_and_release.yml
+++ b/.github/workflows/wheel_tests_and_release.yml
@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        cibw_python: ["cp39-*", "cp310-*", "cp311-*"]
+        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
         cibw_manylinux: [ manylinux2014 ]
         cibw_arch: [ "x86_64"]
     steps:
@@ -55,7 +55,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        cibw_python: ["cp39-*", "cp310-*", "cp311-*"]
+        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
         cibw_manylinux: [ manylinux2014 ]
     steps:
       - uses: actions/checkout@v3
@@ -92,7 +92,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest]
-        cibw_python: ["cp39-*", "cp310-*" , "cp311-*" ]
+        cibw_python: ["cp39-*", "cp310-*" , "cp311-*", "cp312-*"]
         cibw_arch: ["x86_64", "arm64"]
     steps:
       - uses: actions/checkout@v4
@@ -140,7 +140,7 @@ jobs:
       matrix:
         os: [windows-latest]
         cibw_arch: ["AMD64", "x86"]
-        cibw_python: ["cp39-*", "cp310-*", "cp311-*"]
+        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
     steps:
       - uses: actions/checkout@v4
         with:
@@ -198,7 +198,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install twine
-          pip install "cython<3" numpy
+          pip install cython numpy
       
       - uses: actions/download-artifact@v3
         id: download
diff --git a/pyproject.toml b/pyproject.toml
index f9b44314..f9a2ba76 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,9 @@
 build-backend = "mesonpy"
 requires = [
     "meson-python>=0.14.0",
-    "Cython>=0.29.35",  # when updating version, also update check in meson.build
+    # when updating Cython version, also update check in meson.build
+    "Cython>=0.29.35,<3.0; python_version>='3.12' and platform_system=='Windows'",
+    "Cython>=0.29.35; python_version<'3.12' or platform_system!='Windows'",
 
     # When numpy 2.0.0rc1 comes out, we should update this to build against 2.0,
     # and then runtime depend on the range 1.22.X to <2.3. No need to switch to
@@ -18,15 +20,17 @@ requires = [
     # default numpy requirements
     "numpy==1.22.4; python_version<='3.10' and platform_python_implementation != 'PyPy'",
     "numpy==1.23.3; python_version=='3.11' and platform_python_implementation != 'PyPy'",
+    "numpy==1.26.0; python_version=='3.12' and platform_python_implementation != 'PyPy'",
     # For Python versions which aren't yet officially supported, we specify an
     # unpinned NumPy which allows source distributions to be used and allows
     # wheels to be used as soon as they become available.
-    "numpy>=1.26.0b1; python_version>='3.12'",
+    "numpy; python_version>='3.13'",
     "numpy; python_version>='3.9' and platform_python_implementation=='PyPy'",
 ]
 
 [project]
 name = "PyWavelets"
+version = "1.5.0.dev0"
 # TODO: add `license-files` once PEP 639 is accepted (see meson-python#88)
 #       at that point, no longer include them in `py3.install_sources()`
 license = {file = "LICENSE"}
@@ -38,7 +42,7 @@ requires-python = ">=3.9"
 dependencies = [
     # TODO: update to "pin-compatible" once possible, see
     # https://github.com/FFY00/meson-python/issues/29
-    "numpy>=1.22.4",
+    "numpy>=1.22.4,<2.0",
 ]
 readme = "README.rst"
 classifiers = [
@@ -54,9 +58,9 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Topic :: Software Development :: Libraries :: Python Modules"
 ]
-dynamic = ['version']
 
 [project.urls]
 homepage = "https://github.com/PyWavelets/pywt"