diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4e5265b..610d40f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ concurrency:
 jobs:
   core-tests:
     name: Core correctness and stress tests
-    runs-on: macos-26
+    runs-on: xcode-27
     timeout-minutes: 10
 
     steps:
@@ -28,7 +28,7 @@ jobs:
 
   app-build:
     name: Build macOS app
-    runs-on: macos-26
+    runs-on: xcode-27
     timeout-minutes: 15
 
     steps:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7d2338d..b9b66a5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ permissions:
   contents: write
 jobs:
   release:
-    runs-on: macos-26
+    runs-on: xcode-27
     env:
       RELEASE_VERSION: ${{ inputs.version || github.ref_name }}
       HAS_SIGNING_CERTIFICATE: ${{ secrets.DEVELOPER_ID_APPLICATION_P12 != '' }}