diff --git a/CHANGELOG b/CHANGELOG
index db6a3b244..763331419 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,4 @@
-mkdocs-material-8.5.11+insiders-4.27.0 (2022-12-21)
+mkdocs-material-8.5.11+insiders-4.27.0 (2022-12-20)
 
   * Added built-in typeset plugin to preserve formatting in sidebars
   * Added URL and table of contents support for blog categories
diff --git a/docs/insiders/changelog.md b/docs/insiders/changelog.md
index 9f28932a9..4a3e62dc5 100644
--- a/docs/insiders/changelog.md
+++ b/docs/insiders/changelog.md
@@ -2,7 +2,7 @@
 
 ## Material for MkDocs Insiders
 
-### 4.27.0 <small>_ December 21, 2022</small> { id="4.27.0" }
+### 4.27.0 <small>_ December 20, 2022</small> { id="4.27.0" }
 
 - Added built-in typeset plugin to preserve formatting in sidebars
 - Added URL and table of contents support for blog categories
diff --git a/docs/insiders/index.md b/docs/insiders/index.md
index 5aa5a4712..345ddcf92 100644
--- a/docs/insiders/index.md
+++ b/docs/insiders/index.md
@@ -93,7 +93,7 @@ which are currently exclusively available to sponsors:
 
 <div class="mdx-columns" markdown>
 
-- [x] [Typeset plugin]: :material-alert-decagram:{ .mdx-pulse title="Added on December 21, 2022" }
+- [x] [Typeset plugin]: :material-alert-decagram:{ .mdx-pulse title="Added on December 20, 2022" }
 - [x] [Privacy plugin: external links] :material-alert-decagram:{ .mdx-pulse title="Added on October 18, 2022" }
 - [x] [Navigation subtitles] :material-alert-decagram:{ .mdx-pulse title="Added on October 2, 2022" }
 - [x] [Tags plugin: allow list] + [custom sorting]
diff --git a/docs/reference/index.md b/docs/reference/index.md
index ea933321d..fd9b1e224 100644
--- a/docs/reference/index.md
+++ b/docs/reference/index.md
@@ -7,7 +7,7 @@ within Markdown files.
 
 ## Configuration
 
-### Built-in <u>typeset</u> plugin :material-alert-decagram:{ .mdx-pulse title="Added on December 21, 2022" }
+### Built-in <u>typeset</u> plugin :material-alert-decagram:{ .mdx-pulse title="Added on December 20, 2022" }
 
 [:octicons-heart-fill-24:{ .mdx-heart } Sponsors only][Insiders]{ .mdx-insiders } ·
 [:octicons-tag-24: insiders-4.27.0][Insiders] ·