diff --git a/CHANGELOG b/CHANGELOG
index 0bc67563e..ef69befc7 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+mkdocs-material-9.1.21 (2023-07-27)
+
+  * Fixed MkDocs 1.4 compat issue in social plugin (9.1.20 regression)
+
 mkdocs-material-9.1.20 (2023-07-27)
 
   * Fixed deprecation warnings for social plugin
diff --git a/docs/changelog/index.md b/docs/changelog/index.md
index 1f29e8a5a..77f132477 100644
--- a/docs/changelog/index.md
+++ b/docs/changelog/index.md
@@ -2,6 +2,10 @@
 
 ## Material for MkDocs
 
+### 9.1.21 <small>July 27, 2023</small> { id="9.1.20" }
+
+- Fixed MkDocs 1.4 compat issue in social plugin (9.1.20 regression)
+
 ### 9.1.20 <small>July 27, 2023</small> { id="9.1.20" }
 
 - Updated Sanskrit translations
diff --git a/material/base.html b/material/base.html
index 2b1eacb54..b75f463aa 100644
--- a/material/base.html
+++ b/material/base.html
@@ -28,7 +28,7 @@
         <link rel="next" href="{{ page.next_page.url | url }}">
       {% endif %}
       <link rel="icon" href="{{ config.theme.favicon | url }}">
-      <meta name="generator" content="mkdocs-{{ mkdocs_version }}, mkdocs-material-9.1.20">
+      <meta name="generator" content="mkdocs-{{ mkdocs_version }}, mkdocs-material-9.1.21">
     {% endblock %}
     {% block htmltitle %}
       {% if page.meta and page.meta.title %}
diff --git a/package-lock.json b/package-lock.json
index 248dcc56c..98364a10f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mkdocs-material",
-  "version": "9.1.20",
+  "version": "9.1.21",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mkdocs-material",
-      "version": "9.1.20",
+      "version": "9.1.21",
       "license": "MIT",
       "dependencies": {
         "array-flat-polyfill": "^1.0.1",
diff --git a/package.json b/package.json
index 365adba2f..7011fa655 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mkdocs-material",
-  "version": "9.1.20",
+  "version": "9.1.21",
   "description": "Documentation that simply works",
   "keywords": [
     "mkdocs",