diff --git a/.github/workflows/trivy-nightly-scan.yaml b/.github/workflows/trivy-nightly-scan.yaml
index 64a9c69b6..af376f5f7 100644
--- a/.github/workflows/trivy-nightly-scan.yaml
+++ b/.github/workflows/trivy-nightly-scan.yaml
@@ -18,9 +18,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
       - name: Run Trivy vulnerability scanner
-        uses: aquasecurity/trivy-action@master
+        uses: aquasecurity/trivy-action@9ab158e8597f3b310480b9a69402b419bc03dbd5 # master
         with:
           image-ref: 'gcr.io/etcd-development/etcd:${{ matrix.versions }}'
           severity: 'CRITICAL,HIGH'
@@ -29,6 +29,6 @@ jobs:
           output: 'trivy-results.sarif'
 
       - name: Upload Trivy scan results to GitHub Security tab
-        uses: github/codeql-action/upload-sarif@v2
+        uses: github/codeql-action/upload-sarif@a669cc5936cc5e1b6a362ec1ff9e410dc570d190 # v2.1.36
         with:
-          sarif_file: 'trivy-results.sarif'
\ No newline at end of file
+          sarif_file: 'trivy-results.sarif'