diff --git a/pyexcel_io/__init__.py b/pyexcel_io/__init__.py
index 0e836b2..f215e48 100644
--- a/pyexcel_io/__init__.py
+++ b/pyexcel_io/__init__.py
@@ -4,7 +4,7 @@
 
     Uniform interface for reading/writing different excel file formats
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import logging
diff --git a/pyexcel_io/_compact.py b/pyexcel_io/_compact.py
index dd75146..e9827ba 100644
--- a/pyexcel_io/_compact.py
+++ b/pyexcel_io/_compact.py
@@ -4,7 +4,7 @@
 
     Compatibles
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import sys
diff --git a/pyexcel_io/book.py b/pyexcel_io/book.py
index 7f0baa1..1948270 100644
--- a/pyexcel_io/book.py
+++ b/pyexcel_io/book.py
@@ -4,7 +4,7 @@
 
     The io interface to file extensions
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import warnings
diff --git a/pyexcel_io/constants.py b/pyexcel_io/constants.py
index aa78a30..25e2823 100644
--- a/pyexcel_io/constants.py
+++ b/pyexcel_io/constants.py
@@ -4,7 +4,7 @@
 
     Constants appeared in pyexcel
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License
 """
 # flake8: noqa
diff --git a/pyexcel_io/database/__init__.py b/pyexcel_io/database/__init__.py
index 98c7df4..b7b4c6d 100644
--- a/pyexcel_io/database/__init__.py
+++ b/pyexcel_io/database/__init__.py
@@ -4,7 +4,7 @@
 
     database data importer and exporter
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 from pyexcel_io.plugins import IOPluginInfoChainV2
diff --git a/pyexcel_io/database/common.py b/pyexcel_io/database/common.py
index 1008c1b..dd0f98d 100644
--- a/pyexcel_io/database/common.py
+++ b/pyexcel_io/database/common.py
@@ -4,7 +4,7 @@
 
     Common classes shared among database importers and exporters
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 
diff --git a/pyexcel_io/database/exporters/django.py b/pyexcel_io/database/exporters/django.py
index 018481a..1953ace 100644
--- a/pyexcel_io/database/exporters/django.py
+++ b/pyexcel_io/database/exporters/django.py
@@ -4,7 +4,7 @@
 
     The lower level handler for django import and export
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 from pyexcel_io.plugin_api import IReader
diff --git a/pyexcel_io/database/exporters/sqlalchemy.py b/pyexcel_io/database/exporters/sqlalchemy.py
index dbdc4c7..a1db305 100644
--- a/pyexcel_io/database/exporters/sqlalchemy.py
+++ b/pyexcel_io/database/exporters/sqlalchemy.py
@@ -4,7 +4,7 @@
 
     The lower level handler for database import and export
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 from pyexcel_io.plugin_api import IReader
diff --git a/pyexcel_io/database/importers/django.py b/pyexcel_io/database/importers/django.py
index 101c43c..42f464f 100644
--- a/pyexcel_io/database/importers/django.py
+++ b/pyexcel_io/database/importers/django.py
@@ -4,7 +4,7 @@
 
     The lower level handler for django import and export
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import logging
diff --git a/pyexcel_io/database/importers/sqlalchemy.py b/pyexcel_io/database/importers/sqlalchemy.py
index 859077f..db10dc5 100644
--- a/pyexcel_io/database/importers/sqlalchemy.py
+++ b/pyexcel_io/database/importers/sqlalchemy.py
@@ -4,7 +4,7 @@
 
     The lower level handler for database import and export
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import logging
diff --git a/pyexcel_io/database/querysets.py b/pyexcel_io/database/querysets.py
index 6dfc6dd..3ce08da 100644
--- a/pyexcel_io/database/querysets.py
+++ b/pyexcel_io/database/querysets.py
@@ -4,7 +4,7 @@
 
     The lower level handler for querysets
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import datetime
diff --git a/pyexcel_io/exceptions.py b/pyexcel_io/exceptions.py
index b6d00aa..2c8ed9f 100644
--- a/pyexcel_io/exceptions.py
+++ b/pyexcel_io/exceptions.py
@@ -4,7 +4,7 @@
 
     all possible exceptions
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 
diff --git a/pyexcel_io/io.py b/pyexcel_io/io.py
index 1606f83..8111959 100644
--- a/pyexcel_io/io.py
+++ b/pyexcel_io/io.py
@@ -4,7 +4,7 @@
 
     The io interface to file extensions
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import os
diff --git a/pyexcel_io/manager.py b/pyexcel_io/manager.py
index 452ef18..9e15090 100644
--- a/pyexcel_io/manager.py
+++ b/pyexcel_io/manager.py
@@ -4,7 +4,7 @@
 
     Control file streams
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 from pyexcel_io._compact import BytesIO, StringIO
diff --git a/pyexcel_io/plugins.py b/pyexcel_io/plugins.py
index 2a6b12c..495283a 100644
--- a/pyexcel_io/plugins.py
+++ b/pyexcel_io/plugins.py
@@ -4,7 +4,7 @@
 
     factory for getting readers and writers
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import pyexcel_io.utils as ioutils
diff --git a/pyexcel_io/readers/__init__.py b/pyexcel_io/readers/__init__.py
index e06ec19..c597292 100644
--- a/pyexcel_io/readers/__init__.py
+++ b/pyexcel_io/readers/__init__.py
@@ -4,7 +4,7 @@
 
     file readers
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 from pyexcel_io.plugins import IOPluginInfoChainV2
diff --git a/pyexcel_io/readers/csv_sheet.py b/pyexcel_io/readers/csv_sheet.py
index bac6f95..fd6f76c 100644
--- a/pyexcel_io/readers/csv_sheet.py
+++ b/pyexcel_io/readers/csv_sheet.py
@@ -4,7 +4,7 @@
 
     csv file reader
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import csv
diff --git a/pyexcel_io/readers/csvz.py b/pyexcel_io/readers/csvz.py
index 4556015..cae0383 100644
--- a/pyexcel_io/readers/csvz.py
+++ b/pyexcel_io/readers/csvz.py
@@ -4,7 +4,7 @@
 
     The lower level csvz file format handler.
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import zipfile
diff --git a/pyexcel_io/service.py b/pyexcel_io/service.py
index 02d0a0e..958ee1e 100644
--- a/pyexcel_io/service.py
+++ b/pyexcel_io/service.py
@@ -4,7 +4,7 @@
 
     provide service code to downstream projects
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import re
diff --git a/pyexcel_io/sheet.py b/pyexcel_io/sheet.py
index b7c7015..da730e3 100644
--- a/pyexcel_io/sheet.py
+++ b/pyexcel_io/sheet.py
@@ -4,7 +4,7 @@
 
     The io interface to file extensions
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import pyexcel_io.constants as constants
diff --git a/pyexcel_io/utils.py b/pyexcel_io/utils.py
index f9f7950..f6f890d 100644
--- a/pyexcel_io/utils.py
+++ b/pyexcel_io/utils.py
@@ -4,7 +4,7 @@
 
     utility functions
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import pyexcel_io.constants as constants
diff --git a/pyexcel_io/writers/__init__.py b/pyexcel_io/writers/__init__.py
index 5a8ce4b..2beeaf7 100644
--- a/pyexcel_io/writers/__init__.py
+++ b/pyexcel_io/writers/__init__.py
@@ -4,7 +4,7 @@
 
     file writers
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 from pyexcel_io.plugins import IOPluginInfoChainV2
diff --git a/pyexcel_io/writers/csv_sheet.py b/pyexcel_io/writers/csv_sheet.py
index f82a67c..422dbed 100644
--- a/pyexcel_io/writers/csv_sheet.py
+++ b/pyexcel_io/writers/csv_sheet.py
@@ -4,7 +4,7 @@
 
     The lower level csv file format writer
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import csv
diff --git a/pyexcel_io/writers/csvz_sheet.py b/pyexcel_io/writers/csvz_sheet.py
index 05fd4fd..fe0cd22 100644
--- a/pyexcel_io/writers/csvz_sheet.py
+++ b/pyexcel_io/writers/csvz_sheet.py
@@ -4,7 +4,7 @@
 
     The lower level csvz file format handler.
 
-    :copyright: (c) 2014-2020 by Onni Software Ltd.
+    :copyright: (c) 2014-2022 by Onni Software Ltd.
     :license: New BSD License, see LICENSE for more details
 """
 import csv