diff --git a/.github/workflows/buildapp.yml b/.github/workflows/buildapp.yml
index 5c4abf7..8a3f68e 100644
--- a/.github/workflows/buildapp.yml
+++ b/.github/workflows/buildapp.yml
@@ -8,7 +8,7 @@ on:
     inputs:
       sdk_version:
         description: "iOS SDK Version"
-        default: "17.5"
+        default: "18.6"
         required: true
         type: string
       uyou_version:
@@ -54,7 +54,7 @@ concurrency:
 jobs:
   build:
     name: Build uYouEnhanced
-    runs-on: macos-14
+    runs-on: macos-15
     permissions:
       contents: write