diff --git a/.github/workflows/gateway-conformance.yml b/.github/workflows/gateway-conformance.yml
index 06ff0b5..e28702f 100644
--- a/.github/workflows/gateway-conformance.yml
+++ b/.github/workflows/gateway-conformance.yml
@@ -58,7 +58,7 @@ jobs:
 
       # 4. Build rainbow
       - name: Checkout rainbow
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: rainbow
       - name: Build rainbow