diff --git a/bob/bio/base/algorithm/Algorithm.py b/bob/bio/base/algorithm/Algorithm.py
index f031664505baa7481cbc0368ed0bc1755e6f9269..91802e411eeb87a0173cbc4707c363a7c8b93743 100644
--- a/bob/bio/base/algorithm/Algorithm.py
+++ b/bob/bio/base/algorithm/Algorithm.py
@@ -91,7 +91,6 @@ class Algorithm (object):
   ):
 
     
-    warnings.simplefilter('default')
     warnings.warn("`bob.bio.base.algorithm.Algorithm` will be deprecated in 01/01/2021. "\
                   "Please, implement your biometric algorithm using `bob.pipelines` (https://gitlab.idiap.ch/bob/bob.pipelines).", DeprecationWarning)
 
diff --git a/bob/bio/base/extractor/Extractor.py b/bob/bio/base/extractor/Extractor.py
index 5cc5f46dfcf6565f8d2ac71f082a8684dda0fa7d..e7c6b9134518f6cb658cefd5896ac886b6cdd9e9 100644
--- a/bob/bio/base/extractor/Extractor.py
+++ b/bob/bio/base/extractor/Extractor.py
@@ -55,7 +55,6 @@ class Extractor (object):
     self.min_feature_file_size = min_feature_file_size
     self._kwargs = kwargs
 
-    warnings.simplefilter('default')
     warnings.warn("`bob.bio.base.extractor.Extractor` will be deprecated in 01/01/2021. "\
                   "Please, implement your biometric algorithm using `bob.pipelines` (https://gitlab.idiap.ch/bob/bob.pipelines).", DeprecationWarning)
 
diff --git a/bob/bio/base/preprocessor/Preprocessor.py b/bob/bio/base/preprocessor/Preprocessor.py
index 197182aab2367c6716efc1178a66ca24fb79d837..f9f63e359b4e882172e7fec3961111cfec12d4fb 100644
--- a/bob/bio/base/preprocessor/Preprocessor.py
+++ b/bob/bio/base/preprocessor/Preprocessor.py
@@ -41,7 +41,6 @@ class Preprocessor (object):
         self.min_preprocessed_file_size = min_preprocessed_file_size
         self._kwargs = kwargs
 
-        warnings.simplefilter('default')
         warnings.warn("`bob.bio.base.preprocessor.Preprocessor` will be deprecated in 01/01/2021. "\
                       "Please, implement your biometric algorithm using `bob.pipelines` (https://gitlab.idiap.ch/bob/bob.pipelines).", DeprecationWarning)