diff --git a/.github/workflows/dists.yml b/.github/workflows/dists.yml
index 8de5ff8..744899b 100644
--- a/.github/workflows/dists.yml
+++ b/.github/workflows/dists.yml
@@ -14,55 +14,46 @@ concurrency:  # https://stackoverflow.com/questions/66335225#comment133398800_72
 
 jobs:
   wheel:
-    name: ${{ matrix.os }}-${{ matrix.target }}-${{ matrix.interpreter }}-${{ matrix.manylinux }}-${{ matrix.python-architecture }}
+    name: ${{ matrix.os }}-${{ matrix.target }}-${{ matrix.manylinux }}-${{ matrix.python-architecture }}
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         target: [x86_64, aarch64]
         manylinux: [auto]
-        interpreter: [all]
         python-architecture: [x64]
         include:
         - os: windows-latest
           target: i686
           manylinux: auto
-          interpreter: all
           python-architecture: x86
         - os: ubuntu-latest
           target: i686
           manylinux: auto
-          interpreter: all
           python-architecture: x64
         - os: ubuntu-latest
           target: aarch64
           manylinux: auto
-          interpreter: all
           python-architecture: x64
         - os: ubuntu-latest
           target: armv7
           manylinux: auto
-          interpreter: all
           python-architecture: x64
         - os: ubuntu-latest
           target: ppc64le
           manylinux: auto
-          interpreter: all
           python-architecture: x64
         - os: ubuntu-latest
           target: s390x
           manylinux: auto
-          interpreter: all
           python-architecture: x64
         - os: ubuntu-latest
           target: x86_64
           manylinux: musllinux_1_1
-          interpreter: all
           python-architecture: x64
         - os: ubuntu-latest
           target: aarch64
           manylinux: musllinux_1_1
-          interpreter: all
           python-architecture: x64
         exclude:
         # FIXME aarch64 builds broken, see https://github.com/PyO3/maturin/issues/2110
@@ -82,8 +73,7 @@ jobs:
       with:
         target: ${{ matrix.target }}
         manylinux: ${{ matrix.manylinux }}
-        # Keep in sync with tests.yml
-        args: --release --out dist --interpreter ${{ matrix.interpreter == 'all' && '3.8 3.9 3.10 3.11 3.12' || matrix.interpreter }}
+        args: --release --out dist
         rust-toolchain: stable
         docker-options: -e CI
 
@@ -93,7 +83,7 @@ jobs:
 
     - uses: actions/upload-artifact@v4
       with:
-        name: dist-${{ matrix.os }}-${{ matrix.target }}-${{ matrix.interpreter }}-${{ matrix.manylinux }}-${{ matrix.python-architecture }}
+        name: dist-${{ matrix.os }}-${{ matrix.target }}-${{ matrix.manylinux }}-${{ matrix.python-architecture }}
         path: dist
 
   sdist:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 09e2004..4d61eee 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,10 +15,8 @@ jobs:
     runs-on: ${{ matrix.platform.os }}
     strategy:
       matrix:
-        # Keep in sync with:
-        #   - dists.yml
-        #   - the c_impl tests below
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        # Keep in sync with c_impl tests below
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         rust-toolchain: [stable, beta, nightly]
         platform: [
           { os: "ubuntu-latest",  python-architecture: "x64", rust-target: "x86_64-unknown-linux-gnu", name: "ubuntu-x64" },
@@ -58,10 +56,8 @@ jobs:
     runs-on: ${{ matrix.platform.os }}
     strategy:
       matrix:
-        # Keep in sync with:
-        #   - dists.yml
-        #   - the rust_impl tests above
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        # Keep in sync with rust_impl tests above
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         platform: [
           # This list should be kept in sync with dists.yml.
           { os: "ubuntu-latest",  python-architecture: "x64", name: "ubuntu-x64" },
diff --git a/Cargo.toml b/Cargo.toml
index a38fe55..0d20953 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,5 +23,5 @@ neon = ["blake3/neon"]
 [dependencies]
 blake3 = { version = "1.5", features = ["mmap", "rayon"] }
 hex = "0.4.2"
-pyo3 = { version = "0.20.0", features = ["extension-module"] }
+pyo3 = { version = "0.20.0", features = ["abi3-py38", "extension-module"] }
 rayon = "1.2.1"