diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 7029f0d..6c87cec 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -81,7 +81,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        target: [x86_64, x86, aarch64, armv7, s390x, ppc64le]
+        target: [x86_64, x86, aarch64, armv7, s390x, ppc64le, riscv64gc-unknown-linux-gnu]
 
     steps:
       - uses: actions/checkout@v4
@@ -103,12 +103,12 @@ jobs:
             pypy3.11
           allow-prereleases: true
       - name: Build wheels
-        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
+        uses: ffgan/maturin-action@542101dd78ba7e859666722008d1e6e9a0ccabb4 # v1.49.3
         with:
           target: ${{ matrix.target }}
           args: --release --out dist --interpreter '3.9 3.10 3.11 3.12 3.13 3.13t 3.14 3.14t pypy3.9 pypy3.10 pypy3.11'
           sccache: ${{ github.ref_type != 'tag' }} # zizmor: ignore[cache-poisoning]
-          manylinux: auto
+          manylinux: manylinux_2_39
       - name: Upload wheels
         uses: actions/upload-artifact@v4
         with: