diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index af9d11b..44a7bfa 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -50,7 +50,7 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@v3.3.0
         env:
-          CIBW_SKIP: "cp314t-*"
+          CIBW_SKIP: "cp38-* cp314t-*"
 
       - uses: actions/upload-artifact@v6
         with:
diff --git a/pyproject.toml b/pyproject.toml
index 9ee21c9..efe2bb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
-requires = ["setuptools>=64", "wheel", "numpy"]
+requires = ["setuptools>=64", "wheel", "numpy>=2.0.0"]
 build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
index 3a353ed..784c98d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 imageio
-numpy
+numpy>=2.0.0
diff --git a/setup.py b/setup.py
index 2a510fd..f0621a5 100644
--- a/setup.py
+++ b/setup.py
@@ -27,8 +27,9 @@ def __str__(self):
         'src/cpp/experimental_heuristics.cpp',
     ],
     define_macros=[
-        ('Py_LIMITED_API', '0x03080000'),
-        ('NPY_NO_DEPRECATED_API', 'NPY_1_7_API_VERSION'),
+        ('Py_LIMITED_API', '0x03090000'),
+        ('NPY_NO_DEPRECATED_API', 'NPY_2_0_API_VERSION'),
+        ('NPY_TARGET_VERSION', 'NPY_2_0_API_VERSION'),
     ],
     py_limited_api=True,
     include_dirs=[
@@ -42,7 +43,7 @@ def __str__(self):
 # Define package metadata
 setup(
     name='pyastar2d',
-    version='1.1.0',
+    version='1.1.1',
     author='Hendrik Weideman',
     author_email='hjweide@gmail.com',
     description='A simple implementation of the A* algorithm for path-finding on a two-dimensional grid.',
@@ -52,7 +53,7 @@ def __str__(self):
     packages=find_packages(where='src', exclude=('tests',)),
     package_dir={'': 'src'},
     install_requires=install_requires,
-    python_requires='>=3.8',
+    python_requires='>=3.9',
     ext_modules=[astar_module],
-    options={'bdist_wheel': {'py_limited_api': 'cp38'}},
+    options={'bdist_wheel': {'py_limited_api': 'cp39'}},
 )
diff --git a/src/cpp/astar.cpp b/src/cpp/astar.cpp
index 1757202..a2133b9 100644
--- a/src/cpp/astar.cpp
+++ b/src/cpp/astar.cpp
@@ -2,7 +2,6 @@
 #include <limits>
 #include <cmath>
 #include <Python.h>
-#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
 #include <numpy/arrayobject.h>
 #include <iostream>
 #include <experimental_heuristics.h>