diff --git a/qlib/utils/pickle_utils.py b/qlib/utils/pickle_utils.py
index 920692f3c8..922c4e17b2 100644
--- a/qlib/utils/pickle_utils.py
+++ b/qlib/utils/pickle_utils.py
@@ -46,15 +46,13 @@
     ("pathlib", "Path"),
     ("pathlib", "PosixPath"),
     ("pathlib", "WindowsPath"),
-    ("qlib.data.dataset.handler", "DataHandler"),
-    ("qlib.data.dataset.handler", "DataHandlerLP"),
-    ("qlib.data.dataset.loader", "StaticDataLoader"),
 }
 
 
 TRUSTED_MODULE_PREFIXES = (
     "pandas",
     "numpy",
+    "qlib",
 )