diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7326391..b856fae 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,21 +33,13 @@ jobs:
         conf:
           - { os: ubuntu-latest, target: x86_64,  target-triple: x86_64-unknown-linux-gnu,             manylinux: auto }
           - { os: ubuntu-latest, target: x86_64,  target-triple: x86_64-unknown-linux-musl,            manylinux: musllinux_1_1 }
-          - { os: ubuntu-latest, target: i686,    target-triple: i686-unknown-linux-gnu,               manylinux: auto }
-          - { os: ubuntu-latest, target: i686,    target-triple: i686-unknown-linux-musl,              manylinux: musllinux_1_1 }
           - { os: ubuntu-latest, target: aarch64, target-triple: aarch64-unknown-linux-gnu,            manylinux: auto }
           - { os: ubuntu-latest, target: aarch64, target-triple: aarch64-unknown-linux-musl,           manylinux: musllinux_1_1 }
           - { os: ubuntu-latest, target: armv7,   target-triple: armv7-unknown-linux-gnueabihf,        manylinux: auto }
           - { os: ubuntu-latest, target: armv7,   target-triple: armv7-unknown-linux-musleabihf,       manylinux: musllinux_1_1 }
-          - { os: ubuntu-latest, target: s390x,   target-triple: s390x-unknown-linux-gnu,              manylinux: auto }
-        # - { os: ubuntu-latest, target: s390x,   target-triple: s390x-unknown-linux-musl,             manylinux: musllinux_1_1 }  # no target musl for s390x
-          - { os: ubuntu-latest, target: ppc64le, target-triple: powerpc64le-unknown-linux-gnu,        manylinux: auto }
-        # - { os: ubuntu-latest, target: ppc64le, target-triple: powerpc64le-unknown-linux-musleabihf, manylinux: musllinux_1_1 }  # no target musl for ppc64le
-
-          - { os: macos-13, target: x86_64,     target-triple: x86_64-apple-darwin }
-          - { os: macos-13, target: aarch64,    target-triple: aarch64-apple-darwin }
-          - { os: macos-13, target: universal2, target-triple: x86_64-apple-darwin }
-
+          - { os: macos-15-intel, target: x86_64,     target-triple: x86_64-apple-darwin }
+          - { os: macos-latest, target: aarch64,    target-triple: aarch64-apple-darwin }
+          - { os: macos-latest, target: universal2, target-triple: x86_64-apple-darwin }
           - { os: windows-latest, target: x86_64, target-triple: x86_64-pc-windows-msvc, python-architecture: x64 }
           - { os: windows-latest, target: i686,   target-triple: i686-pc-windows-msvc,   python-architecture: x86 }