diff --git a/.github/workflows/buildapp.yml b/.github/workflows/buildapp.yml
index ec8affb..351752e 100644
--- a/.github/workflows/buildapp.yml
+++ b/.github/workflows/buildapp.yml
@@ -8,7 +8,7 @@ on:
     inputs:
       sdk_version:
         description: "iOS SDK Version"
-        default: "16.5"
+        default: "17.5"
         required: true
         type: string
       decrypted_youtube_url:
@@ -54,7 +54,7 @@ concurrency:
 jobs:
   build:
     name: Build YTLitePlus
-    runs-on: macos-12
+    runs-on: macos-13
     permissions:
       contents: write
 
@@ -73,7 +73,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: theos/theos
-          ref: 3da31488281ecf4394d10302d2629607f4a1aa07
+          ref: master
           path: theos
           submodules: recursive