diff --git a/pints/__init__.py b/pints/__init__.py
index 764d888..68d9e2c 100644
--- a/pints/__init__.py
+++ b/pints/__init__.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2021 Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/pints/calling_engine.py b/pints/calling_engine.py
index c309761..6333fb7 100644
--- a/pints/calling_engine.py
+++ b/pints/calling_engine.py
@@ -2,7 +2,7 @@
 # coding=utf-8
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2022. Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/pints/extension_engine.py b/pints/extension_engine.py
index 8cd9e62..c89b851 100644
--- a/pints/extension_engine.py
+++ b/pints/extension_engine.py
@@ -2,7 +2,7 @@
 # coding=utf-8
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2022. Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -17,7 +17,6 @@
 import os
 import sys
 import logging
-import warnings
 
 try:
     import numpy as np
@@ -28,7 +27,6 @@
 except ImportError as e:
     missing_package = str(e).replace("No module named '", "").replace("'", "")
     sys.exit("Please install %s first!" % missing_package)
-warnings.filterwarnings("error")
 
 logger = logging.getLogger("PINTS - BoundaryExtender")
 __EXTENDED_FILE_TPL__ = "_element_{de_tag}bp.bed"
diff --git a/pints/io_engine.py b/pints/io_engine.py
index a3f1266..91a540e 100644
--- a/pints/io_engine.py
+++ b/pints/io_engine.py
@@ -2,7 +2,7 @@
 # coding=utf-8
 #
 # PINTS: Peak Identifier for Nascent Transcripts Starts
-# Copyright (C) 2019-2021 Li Yao at the Yu Lab
+# Copyright (C) 2019-2023 Yu Lab.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/pints/qc_engine.py b/pints/qc_engine.py
index 8010f03..a9e9d8e 100644
--- a/pints/qc_engine.py
+++ b/pints/qc_engine.py
@@ -2,7 +2,7 @@
 import os.path
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2022. Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/pints/stats_engine.py b/pints/stats_engine.py
index 26427dd..23befac 100644
--- a/pints/stats_engine.py
+++ b/pints/stats_engine.py
@@ -4,7 +4,7 @@
 # Created on: 2019-08-07
 #
 # PINTS: Peak Identifier for Nascent Transcripts Starts
-# Copyright (C) 2019 Li Yao at the Yu Lab
+# Copyright (C) 2019-2023 Yu Lab.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/scripts/pints_boundary_extender b/scripts/pints_boundary_extender
index 5f0ef33..a011ae2 100644
--- a/scripts/pints_boundary_extender
+++ b/scripts/pints_boundary_extender
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2021 Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/scripts/pints_caller b/scripts/pints_caller
index 42721d2..e246870 100644
--- a/scripts/pints_caller
+++ b/scripts/pints_caller
@@ -2,7 +2,7 @@
 # coding=utf-8
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2021 Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/scripts/pints_normalizer b/scripts/pints_normalizer
index 7e7736b..12ec14a 100644
--- a/scripts/pints_normalizer
+++ b/scripts/pints_normalizer
@@ -2,7 +2,7 @@
 # coding=utf-8
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2021 Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/scripts/pints_sample_qc b/scripts/pints_sample_qc
index 91f8362..a1641f6 100644
--- a/scripts/pints_sample_qc
+++ b/scripts/pints_sample_qc
@@ -2,7 +2,7 @@
 # coding=utf-8
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2022. Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/scripts/pints_visualizer b/scripts/pints_visualizer
index e3984b9..f19cb27 100644
--- a/scripts/pints_visualizer
+++ b/scripts/pints_visualizer
@@ -2,7 +2,7 @@
 # coding=utf-8
 
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2021 Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/tests/functional_test.py b/tests/functional_test.py
index 05ddaba..33a26ff 100644
--- a/tests/functional_test.py
+++ b/tests/functional_test.py
@@ -1,5 +1,5 @@
 #  PINTS: Peak Identifier for Nascent Transcripts Starts
-#  Copyright (c) 2019-2022. Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
diff --git a/tests/test_em.py b/tests/test_em.py
index 398202c..2e79e25 100644
--- a/tests/test_em.py
+++ b/tests/test_em.py
@@ -1,5 +1,5 @@
 #  PINTS: Peak Identifier for Nascent Transcripts Sequencing
-#  Copyright (c) 2019-2022. Li Yao at the Yu Lab.
+#  Copyright (c) 2019-2023 Yu Lab.
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by