diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bb73193..9b934cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,18 +1,24 @@
 name: CI
 on:
   push:
-    branches:
-      - "**"
+    branches: [ "main"]
+  pull_request:
+    branches: [ "main"]
 
 jobs:
-  ci:
-    runs-on: ubuntu-20.04
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.9']
+    runs-on: ${{ matrix.os }}
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v3
         with:
           python-version: 3.9
           cache: pip
@@ -41,17 +47,20 @@ jobs:
           name: python-code-coverage-report
           path: coverage.xml
 
-  sonarcloud:
-        runs-on: ubuntu-20.04
-        needs: [ci]
-        steps:
-          - uses: actions/checkout@v4
-          - name: Download python coverage report
-            uses: actions/download-artifact@v4
-            with:
-              name: python-code-coverage-report
-          - name: SonarCloud Scan
-            uses: sonarsource/sonarcloud-github-action@v2.3.0
-            env:
-              GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-              SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+#  sonarcloud:
+#        runs-on: ${{ matrix.os }}
+#        strategy:
+#          matrix:
+#            os: [ ubuntu-latest, macos-latest, windows-latest ]
+#        needs: [ci]
+#        steps:
+#          - uses: actions/checkout@v4
+#          - name: Download python coverage report
+#            uses: actions/download-artifact@v4
+#            with:
+#              name: python-code-coverage-report
+#          - name: SonarCloud Scan
+#            uses: sonarsource/sonarcloud-github-action@v2.3.0
+#            env:
+#              GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+#              SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
\ No newline at end of file