diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4d5b0a4..9b9b746 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, windows-latest, macos-14]
+        os: [ubuntu-22.04, windows-latest, macos-15]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c8e494a..f821c92 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,8 +15,8 @@ jobs:
         include:
           - { os: ubuntu-22.04, target: x86_64-unknown-linux-gnu, name: x86_64-linux }
           - { os: ubuntu-22.04-arm, target: aarch64-unknown-linux-gnu, name: aarch64-linux }
-          - { os: macos-14, target: aarch64-apple-darwin, name: aarch64-macos }
-          - { os: macos-14, target: x86_64-apple-darwin, name: x86_64-macos } # Apple Silicon cross-builds Intel; Intel runners queue forever
+          - { os: macos-15, target: aarch64-apple-darwin, name: aarch64-macos }
+          - { os: macos-15, target: x86_64-apple-darwin, name: x86_64-macos } # Apple Silicon cross-builds Intel; Intel runners queue forever
           - { os: windows-latest, target: x86_64-pc-windows-msvc, name: x86_64-windows }
     runs-on: ${{ matrix.os }}
     steps: