diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a571794f..693f86cf 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -3,14 +3,14 @@ name: Tests
 on:
   push:
     branches:
-    - long_lived/**
-    - main
-    - release/**
+      - long_lived/**
+      - main
+      - release/**
     tags:
-    - '**'
+      - "**"
   pull_request:
     branches:
-    - '**'
+      - "**"
 
 jobs:
   build:
@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        python-version: [ '3.9', '3.10', '3.11', '3.12']
+        python-version: ["3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@v5
         with:
diff --git a/.github/workflows/publish-to-pypi.yml b/.github/workflows/publish-to-pypi.yml
index ceec2e82..dcda84c7 100644
--- a/.github/workflows/publish-to-pypi.yml
+++ b/.github/workflows/publish-to-pypi.yml
@@ -5,14 +5,14 @@ name: Publish Python distributions to PyPI
 on:
   push:
     branches:
-    - long_lived/**
-    - main
-    - release/**
+      - long_lived/**
+      - main
+      - release/**
     tags:
-    - '**'
+      - "**"
   pull_request:
     branches:
-    - '**'
+      - "**"
 
 permissions:
   contents: read
@@ -24,35 +24,35 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v5
-      with:
-        fetch-depth: 0
-
-    - run: |
-        git fetch origin +refs/tags/*:refs/tags/*
-
-    - name: Set up Python 3.10
-      uses: actions/setup-python@v6
-      with:
-        python-version: "3.10"
-
-    - name: Build a binary wheel and a source tarball 
-      run: |
-        python -m venv venv
-        source venv/bin/activate
-        python -m pip install --upgrade pip
-        pip install build
-        python -m build --outdir dist/ .
-
-    - name: Upload artifacts
-      uses: actions/upload-artifact@v4
-      with:
-        name: dist
-        path: ./dist
-
-    - name: Publish distribution to PyPI
-      if: startsWith(github.event.ref, 'refs/tags')
-      uses: pypa/gh-action-pypi-publish@release/v1
-      with:
-        packages-dir: dist/
-        skip-existing: true
+      - uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - run: |
+          git fetch origin +refs/tags/*:refs/tags/*
+
+      - name: Set up Python 3.12
+        uses: Chia-Network/actions/setup-python@main
+        with:
+          python-version: "3.12"
+
+      - name: Build a binary wheel and a source tarball
+        run: |
+          python -m venv venv
+          source venv/bin/activate
+          python -m pip install --upgrade pip
+          pip install build
+          python -m build --outdir dist/ .
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: ./dist
+
+      - name: Publish distribution to PyPI
+        if: startsWith(github.event.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          packages-dir: dist/
+          skip-existing: true
diff --git a/pyproject.toml b/pyproject.toml
index 5e59761b..54392f14 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.5.0"]
+requires = ["setuptools>=80", "wheel", "setuptools_scm[toml]>=8"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
diff --git a/setup.py b/setup.py
index ea5dae35..8742f9b7 100755
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,6 @@
         "Development Status :: 3 - Alpha",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "License :: OSI Approved :: Apache Software License",