diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8b930a3..a1f421d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ concurrency:
 jobs:
   lint:
     name: Lint
-    runs-on: macos-26
+    runs-on: xcode-27
 
     steps:
       - name: Checkout
@@ -33,7 +33,7 @@ jobs:
   macos-build-and-test:
     name: macOS Build + Test
     needs: lint
-    runs-on: macos-26
+    runs-on: xcode-27
 
     steps:
       - name: Checkout
@@ -44,7 +44,7 @@ jobs:
           RESULT_BUNDLE="$RUNNER_TEMP/BitDream.xcresult"
           rm -rf "$RESULT_BUNDLE"
 
-          /Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild test \
+          xcodebuild test \
             -project BitDream.xcodeproj \
             -scheme BitDream \
             -configuration Debug \
@@ -95,7 +95,7 @@ jobs:
 
       - name: Build app (iOS)
         run: |
-          /Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild build \
+          xcodebuild build \
             -project BitDream.xcodeproj \
             -scheme BitDream \
             -configuration Debug \
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ab33b0f..50a8aaf 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,7 +12,7 @@ permissions:
 
 jobs:
   release:
-    runs-on: macos-26
+    runs-on: xcode-27
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
diff --git a/BitDream/Widgets/README.md b/BitDream/Widgets/README.md
index b74440b..dc32e70 100644
--- a/BitDream/Widgets/README.md
+++ b/BitDream/Widgets/README.md
@@ -70,7 +70,7 @@ Apple references: [background task setup](https://developer.apple.com/documentat
 
 ### Testing
 
-- The iOS CI job uses GitHub's `xcode-27` runner because the new submission API requires the iOS 27 SDK. macOS jobs keep their existing runner.
+- CI and releases use the `xcode-27` runner; the iOS background-task submission API requires the iOS 27 SDK.
 - `WidgetRefreshOperationTests` covers snapshot production, timeout behavior, partial network failure, one reload per batch, serialized refreshes, and cancellation of active and queued work.
 - Verify App Group access from both the host app and widget extension. Use Widget Previews for supported layouts.