diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4b90fda0..a45e4dad 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -360,7 +360,8 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          channel: "stable"
+          channel: "master"
+          flutter-version: "76844b864aff"
           cache: true
 
       - name: Cache Pub dependencies
@@ -587,7 +588,8 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          channel: "stable"
+          channel: "master"
+          flutter-version: "76844b864aff"
           cache: true
 
       - name: Cache Pub dependencies