diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 22231ca1..0aa96f43 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,6 +8,11 @@ on:
     branches:
       - "main"
 
+# https://docs.flutter.dev/development/tools/sdk/releases?tab=linux
+env:
+  FLUTTER_VERSION: "3.3.10"
+  FLUTTER_BRANCH: "stable"
+
 jobs:
   android:
     runs-on: ubuntu-latest
@@ -27,7 +32,13 @@ jobs:
         if: ${{ github.ref_type != 'tag' }}
 
       - name: "Setup flutter"
-        uses: "subosito/flutter-action@v2.4.0"
+        uses: subosito/flutter-action@v2
+        with:
+          # set fixed stable version, to avoid surprises, when flutter upgrades
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: ${{ env.FLUTTER_BRANCH }}
+        
+      - run: flutter --version
 
       - name: "Fetch flutter dependencies"
         run: "flutter pub get"
@@ -78,7 +89,13 @@ jobs:
         if: ${{ github.ref_type != 'tag' }}
 
       - name: "Setup flutter"
-        uses: "subosito/flutter-action@v2.4.0"
+        uses: subosito/flutter-action@v2
+        with:
+          # set fixed stable version, to avoid surprises, when flutter upgrades
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: ${{ env.FLUTTER_BRANCH }}
+        
+      - run: flutter --version
 
       - name: "Fetch flutter dependencies"
         run: "flutter pub get"
@@ -156,7 +173,13 @@ jobs:
         if: ${{ github.ref_type != 'tag' }}
 
       - name: "Setup flutter"
-        uses: "subosito/flutter-action@v2.4.0"
+        uses: subosito/flutter-action@v2
+        with:
+          # set fixed stable version, to avoid surprises, when flutter upgrades
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: ${{ env.FLUTTER_BRANCH }}
+        
+      - run: flutter --version
 
       - name: "Fetch flutter dependencies"
         run: "flutter pub get"
@@ -214,7 +237,13 @@ jobs:
         if: ${{ github.ref_type != 'tag' }}
 
       - name: "Setup flutter"
-        uses: "subosito/flutter-action@v2.4.0"
+        uses: subosito/flutter-action@v2
+        with:
+          # set fixed stable version, to avoid surprises, when flutter upgrades
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: ${{ env.FLUTTER_BRANCH }}
+        
+      - run: flutter --version
 
       - name: "Fetch flutter dependencies"
         run: "flutter pub get"
@@ -250,7 +279,13 @@ jobs:
         if: ${{ github.ref_type != 'tag' }}
 
       - name: "Setup flutter"
-        uses: "subosito/flutter-action@v2.4.0"
+        uses: subosito/flutter-action@v2
+        with:
+          # set fixed stable version, to avoid surprises, when flutter upgrades
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: ${{ env.FLUTTER_BRANCH }}
+        
+      - run: flutter --version
 
       - name: "Fetch flutter dependencies"
         run: "flutter pub get"