diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0a29fd050..f69f8f68b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,6 +50,14 @@ jobs:
             },
           ]
         include:
+          # ubuntu-24.04 does not support 3.7
+          - python-version: 3.7
+            platform:
+              {
+                os: "ubuntu-22.04",
+                python-architecture: "x64",
+                rust-target: "x86_64-unknown-linux-gnu",
+              }
           # Older versions of CPython are not available for AArch64.
           - python-version: 3.12
             platform:
@@ -73,6 +81,15 @@ jobs:
                 python-architecture: "x64",
                 rust-target: "x86_64-unknown-linux-gnu",
               }
+        exclude:
+          # ubuntu-24.04 does not support 3.7
+          - python-version: 3.7
+            platform:
+              {
+                os: "ubuntu-latest",
+                python-architecture: "x64",
+                rust-target: "x86_64-unknown-linux-gnu",
+              }
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -125,6 +142,24 @@ jobs:
               rust-target: "x86_64-pc-windows-msvc",
             },
           ]
+        include:
+          # ubuntu-24.04 does not support 3.7
+          - python-version: 3.7
+            platform:
+              {
+                os: "ubuntu-22.04",
+                python-architecture: "x64",
+                rust-target: "x86_64-unknown-linux-gnu",
+              }
+        exclude:
+          # ubuntu-24.04 does not support 3.7
+          - python-version: 3.7
+            platform:
+              {
+                os: "ubuntu-latest",
+                python-architecture: "x64",
+                rust-target: "x86_64-unknown-linux-gnu",
+              }
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -153,6 +188,9 @@ jobs:
     needs: [lint, check-msrv, examples]
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
       - uses: messense/maturin-action@v1
         with:
           target: aarch64
@@ -164,6 +202,9 @@ jobs:
     needs: [lint, check-msrv, examples]
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
         continue-on-error: true
@@ -179,6 +220,9 @@ jobs:
     needs: [lint, check-msrv, examples]
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
       - uses: dtolnay/rust-toolchain@nightly
       - uses: Swatinem/rust-cache@v2
         continue-on-error: true
@@ -194,7 +238,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: '3.12'
       - name: Install Rust
         uses: dtolnay/rust-toolchain@1.63
       - uses: Swatinem/rust-cache@v2
@@ -235,6 +279,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
       - name: Install OpenBLAS
         run: sudo apt install --yes libopenblas-dev
       - name: Install Rust
@@ -252,6 +299,9 @@ jobs:
     needs: [lint, check-msrv, examples]
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
       - name: Install numpy
         run: pip install "numpy" ml_dtypes
       - uses: Swatinem/rust-cache@v2