diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3191b91..df4397e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -43,14 +43,6 @@ jobs:
         compiler: gcc
         version: 13
 
-    # The setup-fortran action doesn't work on macos-arm64 currently
-    - name: Link fortrans on macos-arm64
-      if: startsWith(matrix.os, 'macos-14')
-      run: |
-        ln -fs /opt/homebrew/bin/gfortran-13 /usr/local/bin/gfortran
-        ln -fs /opt/homebrew/bin/gcc-13 /usr/local/bin/gcc
-        ln -fs /opt/homebrew/bin/g++-13 /usr/local/bin/g++
-
     - name: Compiler versions
       run: |
         which gcc
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index f947669..637b82d 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -48,14 +48,6 @@ jobs:
           compiler: gcc
           version: 13
 
-      # The setup-fortran action doesn't work on macos-arm64 currently
-      - name: Link fortran on macos-arm64
-        if: startsWith(matrix.os, 'macos-14')
-        run: |
-          ln -fs /opt/homebrew/bin/gfortran-13 /usr/local/bin/gfortran
-          ln -fs /opt/homebrew/bin/gcc-13 /usr/local/bin/gcc
-          ln -fs /opt/homebrew/bin/g++-13 /usr/local/bin/g++
-
       - name: Compiler versions
         run: |
           which gcc
@@ -75,7 +67,7 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.17.0
         env:
-          CIBW_BUILD: "cp39-* cp310-* cp311-* cp312-*"
+          CIBW_BUILD: "cp310-* cp311-* cp312-*"
           # skip 32 bit windows and linux builds because numpy
           # does not provide wheels for these platforms
           CIBW_SKIP: "*-win32 *_i686"
diff --git a/pyproject.toml b/pyproject.toml
index ce64d3d..6d1ba8e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,6 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -30,8 +29,8 @@ classifiers = [
     "Operating System :: Unix",
     "Operating System :: MacOS",
 ]
-requires-python = ">=3.9"
-dependencies = ["numpy"]
+requires-python = ">=3.10"
+dependencies = ["numpy>=1.23"]
 
 [project.optional-dependencies]
 tests = [