diff --git a/.github/workflows/verify_microsite_accessibility.yml b/.github/workflows/verify_microsite_accessibility.yml
index 683fe7840e..9df9a9f8a0 100644
--- a/.github/workflows/verify_microsite_accessibility.yml
+++ b/.github/workflows/verify_microsite_accessibility.yml
@@ -19,10 +19,10 @@ jobs:
         with:
           egress-policy: audit
 
-      - uses: actions/checkout@v4.1.1
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Use Node.js 18.x
-        uses: actions/setup-node@v4.0.1
+        uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8 # v4.0.1
         with:
           node-version: 18.x