diff --git a/.github/workflows/buildapp.yml b/.github/workflows/buildapp.yml
index 825327d..277f9e8 100644
--- a/.github/workflows/buildapp.yml
+++ b/.github/workflows/buildapp.yml
@@ -8,7 +8,7 @@ on:
     inputs:
       uyou_version:
         description: "The version of uYou"
-        default: "2.3~1"
+        default: "2.1"
         required: true
         type: string
       decrypted_youtube_url:
@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: Checkout Main
-        uses: actions/checkout@v3.2.0
+        uses: actions/checkout@v3.5.3
         with:
           path: main
           submodules: recursive
@@ -62,16 +62,16 @@ jobs:
         run: echo "$(brew --prefix make)/libexec/gnubin" >> $GITHUB_PATH 
 
       - name: Setup Theos
-        uses: actions/checkout@v3.2.0
+        uses: actions/checkout@v3.5.3
         with:
           repository: theos/theos
-          ref: master
+          ref: 3da31488281ecf4394d10302d2629607f4a1aa07
           path: theos
           submodules: recursive
       
       - name: Caching
         id: SDK
-        uses: actions/cache@v3.2.0
+        uses: actions/cache@v3.3.1
         env:
           cache-name: iOS-15.5-SDK
         with:
@@ -87,7 +87,7 @@ jobs:
           THEOS: ${{ github.workspace }}/theos
 
       - name: Setup Theos Jailed
-        uses: actions/checkout@v3.2.0
+        uses: actions/checkout@v3.5.3
         with:
           repository: qnblackcat/theos-jailed
           ref: master
@@ -136,7 +136,7 @@ jobs:
           APP_NAME: ${{ inputs.app_name }}
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v3.1.1
+        uses: actions/upload-artifact@v3.1.2
         env:
           UYOU_VERSION: ${{ inputs.uyou_version }}
           YOUTUBE_VERSION: ${{ inputs.youtube_version }}