diff --git a/.github/workflows/trivy-pr-scan.yml b/.github/workflows/trivy-pr-scan.yml
index 3047f238..d47ecc81 100644
--- a/.github/workflows/trivy-pr-scan.yml
+++ b/.github/workflows/trivy-pr-scan.yml
@@ -50,7 +50,7 @@ jobs:
 
     # We will not be concerned with Medium and Low vulnerabilities
     - name: Run Trivy vulnerability scanner
-      uses: aquasecurity/trivy-action@master
+      uses: aquasecurity/trivy-action@0.33.1
       with:
         image-ref: '${{ github.repository }}:vuln-test'
         format: 'sarif'
@@ -65,4 +65,4 @@ jobs:
       uses: github/codeql-action/upload-sarif@v3
       if: '!cancelled()'
       with:
-        sarif_file: 'trivy-results.sarif'
\ No newline at end of file
+        sarif_file: 'trivy-results.sarif'