diff --git a/pyproject.toml b/pyproject.toml
index 874388a..122b313 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,17 +3,8 @@ requires = [
     "setuptools >= 45",
     "wheel >= 0.30.0",
     "setuptools_scm >= 6.2",
-    # Copied from https://github.com/scipy/scipy/blob/1a72584820e53d83d5f6daab6c7fbafbe9af50d7/pyproject.toml
-    # NOTE: if you update this, you'll need to update install_requires in setup.py
     "Cython>=0.29.33",
-    "numpy==1.22.0; platform_machine=='loongarch64'",
-    "numpy==1.22.3; python_version=='3.9' and platform_system=='Windows' and platform_python_implementation != 'PyPy'",
-    "numpy==1.22.3; python_version=='3.10' and platform_system=='Windows' and platform_python_implementation != 'PyPy'",
-    "numpy==1.21.6; python_version=='3.9' and (platform_system!='Windows' and platform_machine!='loongarch64') and platform_python_implementation != 'PyPy'",
-    "numpy==1.21.6; python_version=='3.10' and (platform_system!='Windows' and platform_machine!='loongarch64') and platform_python_implementation != 'PyPy'",
-    "numpy==1.23.2; python_version=='3.11' and platform_python_implementation != 'PyPy'",
-    "numpy; python_version>='3.12'",
-    "numpy; python_version>='3.9' and platform_python_implementation=='PyPy'",
+    "numpy>=1.21.6;",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -24,7 +15,7 @@ write_to_template = "__version__ = \"{version}\""
 [tool.cibuildwheel]
 test-requires = "pytest"
 test-command = "pytest {project}/tests"
-build = "cp38-* cp39-* cp310-*"
+build = "cp37-* cp38-* cp39-* cp310-* cp311-*"
 # skip musl and ignore the non-standard linux builds
 skip = "*-musllinux_* *s390x* *ppc64le*"
 build-frontend = "build"
diff --git a/requirements.txt b/requirements.txt
index 43bafb3..96623a3 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1 @@
-# https://github.com/scipy/scipy/blob/1a72584820e53d83d5f6daab6c7fbafbe9af50d7/setup.py#L452
 numpy>=1.21.6
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index ce0a0bc..dc01d7a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,13 +14,13 @@ classifiers =
     Operating System :: OS Independent
     Topic :: Scientific/Engineering :: Image Processing
 packages = qoi
-python_requires = >=3.6
+python_requires = >=3.9
 license = MIT
 keywords = qoi
 
 [options]
 zip_safe = False
-python_requires = >=3.6
+python_requires = >=3.9
 package_dir = =src
 packages = find: