diff --git a/.github/workflows/preview-build.yml b/.github/workflows/preview-build.yml
index bc27e01ae65e..4018222addfd 100644
--- a/.github/workflows/preview-build.yml
+++ b/.github/workflows/preview-build.yml
@@ -45,10 +45,10 @@ jobs:
             target: aarch64-unknown-linux-musl
             artifact: code-aarch64-unknown-linux-musl
           # macOS builds (both architectures)
-          - os: macos-14
+          - os: macos-15
             target: x86_64-apple-darwin
             artifact: code-x86_64-apple-darwin
-          - os: macos-14
+          - os: macos-15
             target: aarch64-apple-darwin
             artifact: code-aarch64-apple-darwin
           # Windows build
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4654b24b0a48..c724b4e5b91e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -445,10 +445,10 @@ jobs:
             artifact: code-aarch64-unknown-linux-musl
           # (GNU variants omitted to reduce asset duplication; npm defaults to musl)
           # macOS builds
-          - os: macos-14
+          - os: macos-15
             target: x86_64-apple-darwin
             artifact: code-x86_64-apple-darwin
-          - os: macos-14
+          - os: macos-15
             target: aarch64-apple-darwin
             artifact: code-aarch64-apple-darwin
           # Windows build