diff --git a/.github/workflows/sns-media-cross-platform.yml b/.github/workflows/sns-media-cross-platform.yml
index f2eaea4b..536033b7 100644
--- a/.github/workflows/sns-media-cross-platform.yml
+++ b/.github/workflows/sns-media-cross-platform.yml
@@ -44,7 +44,7 @@ jobs:
             os: windows-2022
             arch: x64
           - name: macOS arm64
-            os: macos-14
+            os: macos-15
             arch: arm64
     runs-on: ${{ matrix.os }}
     timeout-minutes: 30
diff --git a/desktop/tests/package-config.test.cjs b/desktop/tests/package-config.test.cjs
index 93842b65..6f4748a0 100644
--- a/desktop/tests/package-config.test.cjs
+++ b/desktop/tests/package-config.test.cjs
@@ -35,7 +35,7 @@ test("SNS media CI covers Windows x64 and macOS arm64 without release secrets",
   assert.match(workflow, /pull_request:/);
   assert.match(workflow, /os:\s*windows-2022/);
   assert.match(workflow, /arch:\s*x64/);
-  assert.match(workflow, /os:\s*macos-14/);
+  assert.match(workflow, /os:\s*macos-15/);
   assert.match(workflow, /arch:\s*arm64/);
   assert.match(workflow, /tests\/sns-wasm-runtime\.test\.cjs/);
   assert.match(workflow, /tests\/sns-media-source\.test\.mjs/);