diff --git a/ppcls/optimizer/optimizer.py b/ppcls/optimizer/optimizer.py
index a91b57c74e8851744b57001f121cc63faf277f24..8e4ca9e9983abcb642ab838f47c86e25cf74bd70 100644
--- a/ppcls/optimizer/optimizer.py
+++ b/ppcls/optimizer/optimizer.py
@@ -17,6 +17,9 @@ from __future__ import division
 from __future__ import print_function
 
 import inspect
+# for python3.11
+if not hasattr(inspect, 'getargspec'):
+    inspect.getargspec = inspect.getfullargspec
 
 from paddle import optimizer as optim
 from ppcls.utils import logger