diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index f659acb..e821134 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -24,16 +24,9 @@ jobs:
           - [windows-latest, win_amd64]
           - [windows-latest, win32]
           
-        python: ["cp38", "cp39", "cp310", "cp311", "cp312", "pp38"]
+        python: ["cp39", "cp310", "cp311", "cp312"]
         
         exclude:
-          # Don't build PyPy 32-bit windows
-          - buildplat: [windows-latest, win32]
-            python: "pp38"
-          - buildplat: [macos-latest, macosx_arm64]
-            python: "pp38"
-          - buildplat: [macos-latest, macosx_universal2]
-            python: "pp38"
           - buildplat: [windows-latest, win32]
             python: "cp310"
 
@@ -79,11 +72,12 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build_wheels, build_sdist]
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: wheels_artifact-*
           path: dist
-      - uses: actions/download-artifact@v3
+          merge-multiple: true
+      - uses: actions/download-artifact@v4
         with:
           name: source_artifact
           path: dist
diff --git a/.github/workflows/test_pypi.yml b/.github/workflows/test_pypi.yml
index 933b395..627ca26 100644
--- a/.github/workflows/test_pypi.yml
+++ b/.github/workflows/test_pypi.yml
@@ -27,16 +27,9 @@ jobs:
           - [windows-latest, win_amd64]
           - [windows-latest, win32]
           
-        python: ["cp38", "cp39", "cp310", "cp311", "cp312", "pp38"]
+        python: [ "cp39", "cp310", "cp311", "cp312"]
         
         exclude:
-          # Don't build PyPy 32-bit windows
-          - buildplat: [windows-latest, win32]
-            python: "pp38"
-          - buildplat: [macos-latest, macosx_arm64]
-            python: "pp38"
-          - buildplat: [macos-latest, macosx_universal2]
-            python: "pp38"
           - buildplat: [windows-latest, win32]
             python: "cp310"
 
@@ -82,11 +75,12 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build_wheels, build_sdist]
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: wheels_artifact-*
           path: dist
-      - uses: actions/download-artifact@v3
+          merge-multiple: true
+      - uses: actions/download-artifact@v4
         with:
           name: source_artifact
           path: dist
diff --git a/setup.py b/setup.py
index d8c0329..0ec3c2c 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 requirements = ['pybind11', 'pandas', 'numpy', 'scipy', 'tqdm']
 
-__version__ = "0.2.3"
+__version__ = "0.3.0"
 
 
 ext_modules = [
@@ -80,7 +80,7 @@
     packages=find_packages(),
     install_requires=requirements,
     ext_modules=ext_modules,
-    python_requires=">=3.7",
+    python_requires=">=3.9",
     entry_points={
         'console_scripts': [
             'dcona = dcona.__main__:main',