diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 65795b8..0469079 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -137,7 +137,7 @@ jobs:
           sonar.projectVersion="$(git describe --tags HEAD)"
           EOF
       - name: SonarCloud Scan
-        uses: SonarSource/sonarcloud-github-action@master
+        uses: SonarSource/sonarcloud-github-action@v3.1.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Needed to get PR information, if any
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}