diff --git a/.github/workflows/system-tests-against-emulator.yaml b/.github/workflows/system-tests-against-emulator.yaml
index 3487cb4ca..6ecedc870 100644
--- a/.github/workflows/system-tests-against-emulator.yaml
+++ b/.github/workflows/system-tests-against-emulator.yaml
@@ -16,7 +16,7 @@ jobs:
           - 9020:9020
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - uses: actions/setup-node@v3
         with:
           node-version: 14