diff --git a/NEWS.md b/NEWS.md
index 59c45f4..9a3c3af 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,4 +1,8 @@
-# regioncode 0.2.0
+# 0.2.1
+
+- Corrected the region codes of Xinjiang
+
+# 0.2.0
 
 - New function `rank` for level of cities
 - New method in `incomplete_name` so that the function can deal with input with only part of incomplete region names
@@ -7,7 +11,7 @@
   - full name of "Ning Xia"
   - Correct name of Xinjiang
 
-# regioncode 0.1.1
+# 0.1.1
 
 + Styled function with tidyverse style
 + Rewrote `method ` as `convert_to`
@@ -16,7 +20,7 @@
 + Simplified the codes.
 + Added more detailed warning messages.
 
-# regioncode 0.0.9
+# 0.0.9
 
 + Enable to provincial-level conversion with `province`
 + Fixed the error of `incompleteName`
diff --git a/docs/articles/regioncode-vignette.html b/docs/articles/regioncode-vignette.html
index 3044159..be98e32 100644
--- a/docs/articles/regioncode-vignette.html
+++ b/docs/articles/regioncode-vignette.html
@@ -90,7 +90,7 @@ <h1 data-toc-skip>regioncode: One-Step Solution for Chinese Region
                         <h4 data-toc-skip class="author">HU Yue, YE
 Xinyi</h4>
             
-            <h4 data-toc-skip class="date">2024-03-01</h4>
+            <h4 data-toc-skip class="date">2024-03-07</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/sammo3182/regioncode/blob/HEAD/vignettes/regioncode-vignette.Rmd" class="external-link"><code>vignettes/regioncode-vignette.Rmd</code></a></small>
       <div class="hidden name"><code>regioncode-vignette.Rmd</code></div>
@@ -293,8 +293,8 @@ <h3 id="incomplete-naming-of-prefectures">Incomplete Naming of Prefectures<a cla
 <span>  <span class="fu"><a href="https://rdrr.io/r/base/substr.html" class="external-link">substr</a></span><span class="op">(</span>start <span class="op">=</span> <span class="fl">1</span>, stop <span class="op">=</span> <span class="fl">2</span><span class="op">)</span></span>
 <span></span>
 <span><span class="va">fake_incomplete</span></span></code></pre></div>
-<pre><code><span><span class="co">##  [1] "济南"   "泰州市" "松江区" "宜昌"   "来宾"   "怀化"   "莆田市" "宜宾"  </span></span>
-<span><span class="co">##  [9] "定安"   "襄阳"</span></span></code></pre>
+<pre><code><span><span class="co">##  [1] "济南市" "泰州"   "松江"   "宜昌"   "来宾"   "怀化市" "莆田"   "宜宾"  </span></span>
+<span><span class="co">##  [9] "定安县" "襄阳"</span></span></code></pre>
 <div class="sourceCode" id="cb17"><pre class="downlit sourceCode r">
 <code class="sourceCode R"><span><span class="co"># Conversion to full names in 2008</span></span>
 <span><span class="fu"><a href="../reference/regioncode.html">regioncode</a></span><span class="op">(</span>data_input <span class="op">=</span> <span class="va">fake_incomplete</span>, </span>
@@ -684,7 +684,7 @@ <h2 id="conclusion">Conclusion<a class="anchor" aria-label="anchor" href="#concl
 <div class="section level2">
 <h2 id="reference">Reference<a class="anchor" aria-label="anchor" href="#reference"></a>
 </h2>
-<div id="refs" class="references csl-bib-body hanging-indent">
+<div id="refs" class="references csl-bib-body hanging-indent" entry-spacing="0">
 <div id="ref-LiEtAl1987" class="csl-entry">
 Li, Rong, Zhenghui Xiong, and Zhenxing Zhang. 1987. <em>The Language
 Atlas of China</em>. <span>London: Longman</span>.
diff --git a/docs/news/index.html b/docs/news/index.html
index 35473c2..8c549d3 100644
--- a/docs/news/index.html
+++ b/docs/news/index.html
@@ -57,39 +57,6 @@ <h1 data-toc-skip>Changelog <small></small></h1>
       <small>Source: <a href="https://github.com/sammo3182/regioncode/blob/HEAD/NEWS.md" class="external-link"><code>NEWS.md</code></a></small>
     </div>
 
-    <div class="section level2">
-<h2 class="page-header" data-toc-text="0.2.0" id="regioncode-020">regioncode 0.2.0<a class="anchor" aria-label="anchor" href="#regioncode-020"></a></h2>
-<ul><li>New function <code>rank</code> for level of cities</li>
-<li>New method in <code>incomplete_name</code> so that the function can deal with input with only part of incomplete region names</li>
-<li>Bug fix
-<ul><li>present Shaanxi, tibet, macao, hongkong, inner_mongolia correctly</li>
-<li>full name of “Ning Xia”</li>
-<li>Correct name of Xinjiang</li>
-</ul></li>
-</ul></div>
-    <div class="section level2">
-<h2 class="page-header" data-toc-text="0.1.1" id="regioncode-011">regioncode 0.1.1<small>2021-08-02</small><a class="anchor" aria-label="anchor" href="#regioncode-011"></a></h2>
-<ul><li>Styled function with tidyverse style</li>
-<li>Rewrote <code>method</code> as <code>convert_to</code>
-</li>
-<li>Rewrote <code>incompleteName</code> as <code>incomplete_name</code>
-</li>
-<li>Rewrote <code>language_region</code> and <code>language_trans</code> as <code>to_dialect</code>
-</li>
-<li>Simplified the codes.</li>
-<li>Added more detailed warning messages.</li>
-</ul></div>
-    <div class="section level2">
-<h2 class="page-header" data-toc-text="0.0.9" id="regioncode-009">regioncode 0.0.9<a class="anchor" aria-label="anchor" href="#regioncode-009"></a></h2>
-<ul><li>Enable to provincial-level conversion with <code>province</code>
-</li>
-<li>Fixed the error of <code>incompleteName</code>
-</li>
-<li>Simplified the codes.</li>
-<li>Add parameter topinyin &amp; method “2area”</li>
-<li>Remove unnecessary warning about ‘code2code’</li>
-<li>Fix the bug in language_region</li>
-</ul></div>
   </div>
 
   <div class="col-md-3 hidden-xs hidden-sm" id="pkgdown-sidebar">
diff --git a/docs/pkgdown.yml b/docs/pkgdown.yml
index c4b5812..c2cd495 100644
--- a/docs/pkgdown.yml
+++ b/docs/pkgdown.yml
@@ -1,7 +1,7 @@
-pandoc: 3.1.1
+pandoc: 3.1.11
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles:
   regioncode-vignette: regioncode-vignette.html
-last_built: 2024-03-01T08:43Z
+last_built: 2024-03-07T11:41Z
 
diff --git a/data/cityranking.xls b/inst/extdata/cityranking.xls
similarity index 100%
rename from data/cityranking.xls
rename to inst/extdata/cityranking.xls
diff --git a/data/report2021.xlsx b/inst/extdata/report2021.xlsx
similarity index 100%
rename from data/report2021.xlsx
rename to inst/extdata/report2021.xlsx
diff --git a/jss/paper.bib b/jss/paper.bib
deleted file mode 100644
index 65cce5e..0000000
--- a/jss/paper.bib
+++ /dev/null
@@ -1,12 +0,0 @@
-@article{Arel-Bundock2018,
-  doi = {10.21105/joss.00848},
-  url = {https://doi.org/10.21105/joss.00848},
-  year = {2018},
-  publisher = {The Open Journal},
-  volume = {3},
-  number = {28},
-  pages = {848},
-  author = {Vincent Arel-Bundock and Nils Enevoldsen and Cj Yetman},
-  title = {countrycode: An R package to convert country names and country codes},
-  journal = {Journal of Open Source Software}
-}
\ No newline at end of file
diff --git a/jss/paper.md b/jss/paper.md
deleted file mode 100644
index 35ae429..0000000
--- a/jss/paper.md
+++ /dev/null
@@ -1,184 +0,0 @@
----
-title: 'regioncode: Convert Region Names and Division Codes of China Over Years'
-tags:
-- R
-- CRAN
-- social science
-- region names
-- region codes
-- Chinese geography
-date: "14 July 2021"
-output: pdf_document
-authors:
-- name: Yue Hu
-  orcid: 0000-0002-2829-3971
-  affiliation: 1
-- name: Wenquan Wu
-  orcid: 0000-0002-9354-2313
-  affiliation: 1
-bibliography: paper.bib
-affiliations:
-- name: Department of Political Science, Tsinghua University
-  index: 1
----
-
-# Summary: Why `regioncode`?
-
-The Chinese government gives unique geocodes for each county, city (prefecture), and provincial-level administrative unit.
-These "administrative division codes" are consistently [adjusted and updated](http://www.mca.gov.cn/article/sj/xzqh/1980/) to matched national and regional plans of development. The adjustments however may disturb researchers when they conduct studies over time or merge geo-based data from different years. Especially, when researchers render statistical data on a Chinese map, different geocodes between map data and statistical data can cause mess-up outputs.
-
-The package is developed to conquer such difficulties to match regional data across years more conveniently and correctly. Inspired by Vincent Arel-Bundock’s well-known `countrycode` [@Arel-Bundock2018], we created `regioncode` to achieve similar functions specifically for China studies. `regioncode` enables seamlessly converting formal names, common-used names, and division codes of Chinese prefecture regions between each other and across thirty-four years from 1986 to 2019.
-
-# Basic Usage
-
-We uses a randomly drawn sample of Yuhua Wang's [`China’s Corruption Investigations Dataset`](https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/9QZRAD) to illustrate how the package works.
-
-In `regioncode` package, we named administrative division codes as `code`, regions' formal names as `name`, and their commonly used abbreviation as `sname`. In the current version, the function can produce three types of output at both the prefectural and provincial levels: codes (`code`), names (`name`) and area (`area`).One just needs to specify which type of the output they want in the argument `convert_to` and corresponding years of the input and output.
-
-For example, the following codes convert the 2019 geocodes in the `corruption` data to their 1989 version:
-
-```r
-library(regioncode)
-
-data("corruption")
-
-# Original 2019 version
-corruption$prefecture_id
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256350-6e40d218-49f0-4c88-b996-08a375b83fcf.png)
-
-```r
-# 1999 version
-regioncode(data_input = corruption$prefecture_id, 
-           convert_to = "code", # default set
-           year_from = 2019,
-           year_to = 1989)
-```
-
-![](https://user-images.githubusercontent.com/39488085/127259452-0c807d54-dc3a-4aa3-9c5f-48caa53ff2e5.png)
-
-Note that if a region was initially geocoded in e.g., 1989 and included in a new region, in 2019, the new region geocode will be used hereafter.If a big place was broken into several regions, the later-year codes will be aligned with the first region according to the ascendant order of the regions' numeric geocodes.
-
-By altering the output format to `name`, one can easily convert codes or region names of a given year to region names in another year.`regioncode` automatically detects the input format, so users need to specify the *output* format only (together with the input and output years) to gain what they want.
-
-```R
-# The original name
-corruption$prefecture
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256356-768cd2bc-fdf7-43ca-b755-5256264bd57e.png)
-
-```R
-# Codes to name
-
-regioncode(data_input = corruption$prefecture_id, 
-           convert_to = "name",
-           year_from = 2019,
-           year_to = 1989)
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256360-70c87af1-f180-4eb2-9530-5f167b57d2a9.png)
-
-```R
-# Name to codes of the same year
-
-regioncode(data_input = corruption$prefecture, 
-           convert_to = "code",
-           year_from = 2019,
-           year_to = 2019)
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256361-ad389b45-a30f-4bba-929d-3024fe608e83.png)
-
-# Advanced Applications
-
-To further help uses with "messier" data and diverse demands, `regioncode` provides five special conversions: conversion from data with incomplete data, specification of municipalities, conversion sociopolitical areas and linguistic areas, and pinyin output.
-
-## Incomplete naming prefectures.
-
-More than often, data codes may omit the administrative level when recording geo-information. To accomplish conversions of such data, one needs to specify the `incomplete_name` argument. If the input data is incomplete, users should set the argument as "from". Optional values also include "to" and '"both"'.
-
-```R
-# Full, official names
-corruption$prefecture
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256365-a8a22896-0527-4877-b756-3536ff62a33f.png)
-
-```R
-regioncode(data_input = corruption$prefecture, 
-           convert_to = "name",
-           year_from = 2019,
-           year_to = 1989,
-           incomplete_name = "to")
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256368-eff66803-3e9f-413f-a623-88f78783a624.png)
-
-## Municipalities
-
-Municipalities (named "zhixiashi" in Chinese Pinyin) are geographically cities but administratively provincial. `regioncode` sets an argument `zhixiashi`. When the argument is set `TRUE`, the municipalities are treated as whole prefectures, and their provincial codes are used as the geocodes.
-
-## Sociopolitical and Linguistic Areas
-
-Due to social, political, and martial reasons, Chinese regions are divided into seven regions:
-
-![](https://user-images.githubusercontent.com/39488085/127287528-2ed50add-063c-4bec-a881-cce1c0e104d5.png)
-
-`regioncode` also offers a method "area" to convert codes and names of the region into such areas.
-
-```R
-regioncode(data_input = corruption$prefecture, 
-           year_from = 2019,
-           year_to = 1989, 
-           convert_to="area")
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256372-67f37c57-da41-4c0b-9a5a-1da8565fc4b4.png)
-
-China is a multilingual country with a variety of dialects. These dialects may be used by several prefectures in a province or province. Prefectures from different provinces may also share the same dialect. `regioncode` allows users to gain linguistic zones the prefectures belong as an output. Users can gain two levels of linguistic zones, dialect groups and dialect sub-groups by setting the argument `to_pinyin` to `dia_group` or `dia_sub_group`. 
-
-```R
-regioncode(data_input = corruption$prefecture, 
-           year_from = 2019,
-           year_to = 1989,
-           to_dialect = "dia_group")
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256373-88f4f02e-6653-4971-906a-4f796dab1bb0.png)
-
-## Pinyin
-
-Pinyin is a Chinese phonetic romanization. Some data stores the region names with pinyin instead of Chinese characters. The default name output of `regioncode` uses Chinese characters, but one can gain pinyin output by setting the argument `to_pinyin = TRUE`. 
-
-```R
-regioncode(data_input = corruption$prefecture, 
-           year_from = 2019,
-           year_to = 1989, 
-           convert_to="name",
-           to_pinyin=TRUE
-           )
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256378-f5063101-049b-4bf3-abe2-adea2f4ee67e.png)
-
-## Provinces
-
-`regioncode` allows conversions at not only the prefectural but provincial level. By setting the argument `province = TRUE`, users can accomplish all the code, name, and area conversions at the provincial level. When the inputs are abbreviations, users can set the `convert_to` argument to `abbreTocode`, `abbreToname`, or `abbreToarea`. 
-
-```R
-regioncode(data_input = corruption$province_id, 
-           convert_to = "codeToabbre",
-           year_from = 2019,
-           year_to = 1989,
-           province = TRUE)
-```
-
-![](https://user-images.githubusercontent.com/39488085/127256346-72c3b942-fa32-445f-a74e-4a2440e5cb91.png)
-
-# Acknowledgements
-
-We acknowledge contributions from Yufei Sun, Meng Zhu, Xueyan Liu, Yuyang Shi, Yujia Xu, and Yuxin Pan, Haiting Tian, Weihang Shao, and Yuanqian Chen.
-
-# References
diff --git a/jss/paper.pdf b/jss/paper.pdf
deleted file mode 100644
index 3893860..0000000
Binary files a/jss/paper.pdf and /dev/null differ