diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6693db205..5a3879ae8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     # Checks out a copy of your repository on the ubuntu-latest machine
     - uses: actions/checkout@v2
     - name: Set up Python
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Cache bundle
diff --git a/rqalpha/data/bar_dict_price_board.py b/rqalpha/data/bar_dict_price_board.py
index defc8a022..e8454a4f7 100644
--- a/rqalpha/data/bar_dict_price_board.py
+++ b/rqalpha/data/bar_dict_price_board.py
@@ -26,7 +26,7 @@ def __init__(self):
 
     def _get_bar(self, order_book_id):
         if ExecutionContext.phase() == EXECUTION_PHASE.OPEN_AUCTION:
-            return self._env.data_proxy.get_open_auction_bar(order_book_id, self._env.calendar_dt)
+            return self._env.data_proxy.get_open_auction_bar(order_book_id, self._env.trading_dt)
         return self._env.get_bar(order_book_id)
 
     def get_last_price(self, order_book_id):