diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 74a2344..6940e36 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -60,7 +60,7 @@ jobs:
       run: docker save -o citelibre-serviceEZ.tar citelibre/service_ez:ihm-$VERSION
       
     - name: Run Trivy vulnerability scanner in tarball mode of rendez vous image
-      uses: aquasecurity/trivy-action@master
+      uses: aquasecurity/trivy-action@0.20.0
       with:
         input: /github/workspace/citelibre-serviceEZ.tar
         severity: 'CRITICAL,HIGH'