diff --git a/funasr/utils/timestamp_tools.py b/funasr/utils/timestamp_tools.py
index 09c3becfc..423110cdc 100644
--- a/funasr/utils/timestamp_tools.py
+++ b/funasr/utils/timestamp_tools.py
@@ -1,5 +1,3 @@
-from pydoc import TextRepr
-from scipy.fftpack import shift
 import torch
 import copy
 import codecs