diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fc421f17..39a46d39 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,7 +34,7 @@ jobs:
             targets: aab
 
           - platform: windows
-            os: windows-latest
+            os: windows-2019
             aarch: amd64
             targets: exe
             filename: hiddify-windows-x64
@@ -100,7 +100,7 @@ jobs:
       - name: Setup Flutter Distributor
         if: ${{ !startsWith(matrix.platform,'android') }}
         run: |
-          dart pub global activate flutter_distributor
+        dart pub global activate --source git  https://github.com/hiddify/flutter_distributor --git-path packages/flutter_distributor
 
       - name: Setup Linux dependencies
         if: ${{ startsWith(matrix.platform,'linux') }}      
@@ -326,4 +326,4 @@ jobs:
           packageName: app.hiddify.com
           releaseName: ${{ env.TAG_NAME }}
           releaseFiles: ./hiddify-android-market.aab
-          track: 'beta'
+          track: 'beta'
\ No newline at end of file
diff --git a/libcore b/libcore
index ad764a86..66e8beac 160000
--- a/libcore
+++ b/libcore
@@ -1 +1 @@
-Subproject commit ad764a86b11bd3aca37e0de2d22e21659f6d61f0
+Subproject commit 66e8beac53efce8ca73180bc0e23e0a81bd5045c