diff --git a/padertorch/contrib/cb/feature_extractor.py b/padertorch/contrib/cb/feature_extractor.py
index cf46f544..1fec0b31 100644
--- a/padertorch/contrib/cb/feature_extractor.py
+++ b/padertorch/contrib/cb/feature_extractor.py
@@ -197,7 +197,7 @@ def cepstrum(
         size: int=1024,
         shift: int=256,
         *,
-        window: typing.Callable=signal.blackman,
+        window: typing.Callable=signal.windows.blackman,
         window_length: int=None,
         fading: bool=True,
         pad: bool=True,
diff --git a/padertorch/contrib/jensheit/data.py b/padertorch/contrib/jensheit/data.py
index ddc2b543..5d8dd544 100644
--- a/padertorch/contrib/jensheit/data.py
+++ b/padertorch/contrib/jensheit/data.py
@@ -20,9 +20,9 @@
 from collections import Generator
 
 WINDOW_MAP = Dispatcher(
-    blackman=signal.blackman,
-    hamming=signal.hamming,
-    hann=signal.hann
+    blackman=signal.windows.blackman,
+    hamming=signal.windows.hamming,
+    hann=signal.windows.hann
 )