diff --git a/README.md b/README.md
index 1c7f6aa..aa8f1f9 100755
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.815028.svg)](https://doi.org/10.5281/zenodo.815028)
 
 
-`lingtypology` package connects R with the [Glottolog database (v. 4.8)](https://glottolog.org/) and provides additional functionality for linguistic mapping. The Glottolog database contains the catalogue of the world's languages. This package helps researchers to make linguistic maps, using philosophy of [the Cross-Linguistic Linked Data project](https://clld.org/), which uniform access to the data across publications. This package is based on [`leaflet` package](https://rstudio.github.io/leaflet/), so `lingtypology` package is a package for linguistic interactive mapping. You also might be interested in looking into some alternatives to lingtypology:
+`lingtypology` package connects R with the [Glottolog database (v. 5.0)](https://glottolog.org/) and provides additional functionality for linguistic mapping. The Glottolog database contains the catalogue of the world's languages. This package helps researchers to make linguistic maps, using philosophy of [the Cross-Linguistic Linked Data project](https://clld.org/), which uniform access to the data across publications. This package is based on [`leaflet` package](https://rstudio.github.io/leaflet/), so `lingtypology` package is a package for linguistic interactive mapping. You also might be interested in looking into some alternatives to lingtypology:
 
 * [lingtypology](https://pypi.org/project/lingtypology/) in Python by Michael Voronov;
 * [glottospace](https://github.com/glottospace/glottospace) -- R package for the geospatial analysis based on Glottolog by Sietze Norder et al;
diff --git a/docs/index.Rmd b/docs/index.Rmd
index 6da5a54..0c11775 100644
--- a/docs/index.Rmd
+++ b/docs/index.Rmd
@@ -5,7 +5,7 @@ author: "[George Moroz](mailto:agricolamz@gmail.com), [NRU HSE Linguistic Conver
 
 ### What is `lingtypology`?
 
-The `lingtypology` package connects R with the [Glottolog database (v. 4.8)](https://glottolog.org/) and provides an additional functionality for linguistic typology. The Glottolog database contains a catalogue of the world's languages. This package helps researchers to make linguistic maps, using the philosophy of [the Cross-Linguistic Linked Data project](https://clld.org/), which is creating a uniform access to linguistic data across publications. This package is based on the [leaflet package](https://rstudio.github.io/leaflet/), so `lingtypology` is a package for interactive linguistic mapping. In addition, the package provides an ability to download data from typological databases such as WALS, AUTOTYP and others (see section 4). The functionality of this package intersects with 
+The `lingtypology` package connects R with the [Glottolog database (v. 5.0)](https://glottolog.org/) and provides an additional functionality for linguistic typology. The Glottolog database contains a catalogue of the world's languages. This package helps researchers to make linguistic maps, using the philosophy of [the Cross-Linguistic Linked Data project](https://clld.org/), which is creating a uniform access to linguistic data across publications. This package is based on the [leaflet package](https://rstudio.github.io/leaflet/), so `lingtypology` is a package for interactive linguistic mapping. In addition, the package provides an ability to download data from typological databases such as WALS, AUTOTYP and others (see section 4). The functionality of this package intersects with 
 
 - [lingtypology](https://pypi.org/project/lingtypology/) in Python by Michael Voronov;
 - [glottospace](https://github.com/glottospace/glottospace) -- R package for the geospatial analysis based on Glottolog by Sietze Norder et al;
diff --git a/docs/index.html b/docs/index.html
index 863c98e..31c35ae 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -14,7 +14,7 @@
 
 <title>lingtypology: introduction and installation</title>
 
-<script src="site_libs/header-attrs-2.25/header-attrs.js"></script>
+<script src="site_libs/header-attrs-2.27/header-attrs.js"></script>
 <script src="site_libs/jquery-3.6.0/jquery-3.6.0.min.js"></script>
 <meta name="viewport" content="width=device-width, initial-scale=1" />
 <link href="site_libs/bootstrap-3.3.5/css/lumen.min.css" rel="stylesheet" />
@@ -58,7 +58,7 @@
 </style>
 <style type="text/css" data-origin="pandoc">
 pre > code.sourceCode { white-space: pre; position: relative; }
-pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
+pre > code.sourceCode > span { line-height: 1.25; }
 pre > code.sourceCode > span:empty { height: 1.2em; }
 .sourceCode { overflow: visible; }
 code.sourceCode > span { color: inherit; text-decoration: inherit; }
@@ -449,7 +449,7 @@ <h4 class="author"><a href="mailto:agricolamz@gmail.com">George
 <div id="what-is-lingtypology" class="section level3">
 <h3>What is <code>lingtypology</code>?</h3>
 <p>The <code>lingtypology</code> package connects R with the <a
-href="https://glottolog.org/">Glottolog database (v. 4.8)</a> and
+href="https://glottolog.org/">Glottolog database (v. 5.0)</a> and
 provides an additional functionality for linguistic typology. The
 Glottolog database contains a catalogue of the world’s languages. This
 package helps researchers to make linguistic maps, using the philosophy
diff --git a/docs/site_libs/header-attrs-2.27/header-attrs.js b/docs/site_libs/header-attrs-2.27/header-attrs.js
new file mode 100644
index 0000000..dd57d92
--- /dev/null
+++ b/docs/site_libs/header-attrs-2.27/header-attrs.js
@@ -0,0 +1,12 @@
+// Pandoc 2.9 adds attributes on both header and div. We remove the former (to
+// be compatible with the behavior of Pandoc < 2.8).
+document.addEventListener('DOMContentLoaded', function(e) {
+  var hs = document.querySelectorAll("div.section[class*='level'] > :first-child");
+  var i, h, a;
+  for (i = 0; i < hs.length; i++) {
+    h = hs[i];
+    if (!/^h[1-6]$/i.test(h.tagName)) continue;  // it should be a header h1-h6
+    a = h.attributes;
+    while (a.length > 0) h.removeAttribute(a[0].name);
+  }
+});
diff --git a/vignettes/lingtypology_intro.Rmd b/vignettes/lingtypology_intro.Rmd
index e1b0401..216b435 100644
--- a/vignettes/lingtypology_intro.Rmd
+++ b/vignettes/lingtypology_intro.Rmd
@@ -11,7 +11,7 @@ vignette: >
 
 ### What is `lingtypology`?
 
-The `lingtypology` package connects R with the [Glottolog database (v. 4.8)](https://glottolog.org/) and provides an additional functionality for linguistic typology. The Glottolog database contains a catalogue of the world's languages. This package helps researchers to make linguistic maps, using the philosophy of [the Cross-Linguistic Linked Data project](https://clld.org/), which is creating a uniform access to linguistic data across publications. This package is based on the [leaflet package](https://rstudio.github.io/leaflet/), so `lingtypology` is a package for interactive linguistic mapping. In addition, the package provides an ability to download data from typological databases such as WALS, AUTOTYP and others (see section 4). The functionality of this package intersects with 
+The `lingtypology` package connects R with the [Glottolog database (v. 5.0)](https://glottolog.org/) and provides an additional functionality for linguistic typology. The Glottolog database contains a catalogue of the world's languages. This package helps researchers to make linguistic maps, using the philosophy of [the Cross-Linguistic Linked Data project](https://clld.org/), which is creating a uniform access to linguistic data across publications. This package is based on the [leaflet package](https://rstudio.github.io/leaflet/), so `lingtypology` is a package for interactive linguistic mapping. In addition, the package provides an ability to download data from typological databases such as WALS, AUTOTYP and others (see section 4). The functionality of this package intersects with 
 
 - [lingtypology](https://pypi.org/project/lingtypology/) in Python by Michael Voronov;
 - [glottospace](https://github.com/glottospace/glottospace) -- R package for the geospatial analysis based on Glottolog by Sietze Norder et al;