diff --git a/.github/workflows/moban-update.yml b/.github/workflows/moban-update.yml
index 7248179..73a3aed 100644
--- a/.github/workflows/moban-update.yml
+++ b/.github/workflows/moban-update.yml
@@ -21,10 +21,8 @@ jobs:
           git diff --exit-code
       - name: Auto-commit
         if: failure()
-        uses: docker://cdssnc/auto-commit-github-action
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        uses: stefanzweifel/git-auto-commit-action@v4
         with:
-          args: >-
+          commit_message: >-
             This is an auto-commit, updating project meta data,
             such as changelog.rst, contributors.rst
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 613b1e5..8c35fa2 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,16 @@
 Change log
 ================================================================================
 
+0.6.3 - tbd
+--------------------------------------------------------------------------------
+
+**Updated**
+
+#. `#46 <https://github.com/pyexcel/pyexcel-xls/issues/46>`_: remove the hard
+   pin on xlrd version < 2.0
+#. `#47 <https://github.com/pyexcel/pyexcel-xls/issues/47>`_: limit support to
+   persist datetime.timedelta. see more details in doc
+
 0.6.2 - 12.12.2020
 --------------------------------------------------------------------------------
 
diff --git a/README.rst b/README.rst
index 2505490..b4b6546 100644
--- a/README.rst
+++ b/README.rst
@@ -39,6 +39,16 @@ pyexcel-xls - Let you focus on data, instead of xls format
 write data in xls format and it can read xlsx and xlsm fromat.
 You are likely to use it with `pyexcel <https://github.com/pyexcel/pyexcel>`_.
 
+Update:
+
+1. v0.6.3 removed the pin on xlrd < 2. If you have xlrd >= 2, this
+library will NOT read 'xlsx' format and you need to install pyexcel-xlsx. Othwise,
+this library can use xlrd < 2 to read xlsx format for you. So 'xlsx' support
+in this library will vary depending on the installed version of xlrd.
+
+2. 0.6.3 can write datetime.timedelta. but when the value is read out,
+you will get datetime.datetime. so you as the developer decides what to do with it.
+
 New flag: `detect_merged_cells` allows you to spread the same value among
 all merged cells. But be aware that this may slow down its reading
 performance.
@@ -51,7 +61,7 @@ please use pyexcel-xlsx.
 Warning
 ================================================================================
 
-xls file cannot contain more than 65,000 rows. You are risking the reputation
+**xls file cannot contain more than 65,000 rows**. You are risking the reputation
 of yourself/your company/
 `your country <https://www.bbc.co.uk/news/technology-54423988>`_ if you keep
 using xls and are not aware of its row limit.
@@ -353,7 +363,7 @@ Then install relevant development requirements:
 #. pip install -r tests/requirements.txt
 
 Once you have finished your changes, please provide test case(s), relevant documentation
-and update CHANGELOG.rst.
+and update changelog.yml
 
 .. note::
 
@@ -372,7 +382,7 @@ On Linux/Unix systems, please launch your tests like this::
 
     $ make
 
-On Windows systems, please issue this command::
+On Windows, please issue this command::
 
     > test.bat
 
@@ -384,7 +394,7 @@ Please run::
 
     $ make format
 
-so as to beautify your code otherwise travis-ci may fail your unit test.
+so as to beautify your code otherwise your build may fail your unit test.
 
 
 Known Issues
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 550ca04..3816479 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -28,7 +28,7 @@ author = 'C.W.'
 # The short X.Y version
 version = '0.6.2'
 # The full version, including alpha/beta/rc tags
-release = '0.6.2'
+release = '0.6.3'
 
 # -- General configuration ---------------------------------------------------
 
diff --git a/requirements.txt b/requirements.txt
index 65ffc34..4c06b39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 pyexcel-io>=0.6.2
-xlrd<2
+xlrd
 xlwt
diff --git a/setup.py b/setup.py
index 9000415..663c693 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ except (ValueError, UnicodeError, locale.Error):
 
 NAME = "pyexcel-xls"
 AUTHOR = "C.W."
-VERSION = "0.6.2"
+VERSION = "0.6.3"
 EMAIL = "info@pyexcel.org"
 LICENSE = "New BSD"
 DESCRIPTION = (
@@ -40,7 +40,7 @@ DESCRIPTION = (
     "reads xlsx and xlsm format"
 )
 URL = "https://github.com/pyexcel/pyexcel-xls"
-DOWNLOAD_URL = "%s/archive/0.6.2.tar.gz" % URL
+DOWNLOAD_URL = "%s/archive/0.6.3.tar.gz" % URL
 FILES = ["README.rst","CONTRIBUTORS.rst", "CHANGELOG.rst"]
 KEYWORDS = [
     "python",
@@ -69,7 +69,7 @@ PYTHON_REQUIRES = ">=3.6"
 
 INSTALL_REQUIRES = [
     "pyexcel-io>=0.6.2",
-    "xlrd<2",
+    "xlrd",
     "xlwt",
 ]
 SETUP_COMMANDS = {}
@@ -81,8 +81,8 @@ EXTRAS_REQUIRE = {
 PUBLISH_COMMAND = "{0} setup.py sdist bdist_wheel upload -r pypi".format(sys.executable)
 HERE = os.path.abspath(os.path.dirname(__file__))
 
-GS_COMMAND = ("gease pyexcel-xls v0.6.2 " +
-              "Find 0.6.2 in changelog for more details")
+GS_COMMAND = ("gease pyexcel-xls v0.6.3 " +
+              "Find 0.6.3 in changelog for more details")
 NO_GS_MESSAGE = ("Automatic github release is disabled. " +
                  "Please install gease to enable it.")
 UPLOAD_FAILED_MSG = (