diff --git a/.github/workflows/daily-data-sync.yml b/.github/workflows/daily-data-sync.yml
index da24816..325d661 100644
--- a/.github/workflows/daily-data-sync.yml
+++ b/.github/workflows/daily-data-sync.yml
@@ -30,10 +30,10 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
       
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: '3.12'
       
@@ -81,7 +81,7 @@ jobs:
       
       - name: Upload logs on failure
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: sync-logs-${{ github.run_number }}
           path: worker/logs/