diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 4fcb76f..9ac6602 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -26,12 +26,13 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-14, windows-latest]
+        python-version: ["3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v4
       - name: Run composite test suite
         uses: ./.github/actions/run-rust-python-tests
         with:
-          python-version: "3.11"
+          python-version: ${{ matrix.python-version }}
           rust-toolchain: stable
 
   linux:
@@ -66,6 +67,7 @@ jobs:
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
           manylinux: auto
       - name: Upload wheels
+        if: ${{ startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch' }}
         uses: actions/upload-artifact@v4
         with:
           name: wheels-linux-${{ matrix.platform.target }}
@@ -101,6 +103,7 @@ jobs:
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
           manylinux: musllinux_1_2
       - name: Upload wheels
+        if: ${{ startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch' }}
         uses: actions/upload-artifact@v4
         with:
           name: wheels-musllinux-${{ matrix.platform.target }}
@@ -129,6 +132,7 @@ jobs:
           args: --release --out dist --find-interpreter
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
       - name: Upload wheels
+        if: ${{ startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch' }}
         uses: actions/upload-artifact@v4
         with:
           name: wheels-windows-${{ matrix.platform.target }}
@@ -140,10 +144,10 @@ jobs:
     strategy:
       matrix:
         platform:
-          - runner: macos-13
-            target: x86_64
           - runner: macos-14
             target: aarch64
+          - runner: macos-15
+            target: aarch64
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
@@ -156,9 +160,10 @@ jobs:
           args: --release --out dist --find-interpreter
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
       - name: Upload wheels
+        if: ${{ startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch' }}
         uses: actions/upload-artifact@v4
         with:
-          name: wheels-macos-${{ matrix.platform.target }}
+          name: wheels-macos-${{ matrix.platform.runner }}-${{ matrix.platform.target }}
           path: dist
 
   sdist:
@@ -172,6 +177,7 @@ jobs:
           command: sdist
           args: --out dist
       - name: Upload sdist
+        if: ${{ startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch' }}
         uses: actions/upload-artifact@v4
         with:
           name: wheels-sdist
diff --git a/test_python.sh b/test_python.sh
index 51176a7..c3c9df8 100755
--- a/test_python.sh
+++ b/test_python.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 set -e
 source .venv/bin/activate
-maturin develop --release 
+rm -f python/openai_harmony/openai_harmony.cpython-*.so
+maturin develop --release
 pytest "$@"