diff --git a/CHANGELOG b/CHANGELOG
index 577246712..d0117f6fb 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+mkdocs-material-7.3.5+insiders-3.1.5 (2021-10-28)
+
+  * Fixed #3144: Rogue link when using tags with auto-populated navigation
+  * Fixed #3147: Code block line numbers appear in search results
+  * Fixed #3158: Social cards do not strip HTML tags from title
+
 mkdocs-material-7.3.5 (2021-10-27)
 
   * Added support for setting table of contents title via mkdocs.yml
diff --git a/docs/insiders/changelog.md b/docs/insiders/changelog.md
index 395097c7c..c6496361c 100644
--- a/docs/insiders/changelog.md
+++ b/docs/insiders/changelog.md
@@ -6,6 +6,12 @@ template: overrides/main.html
 
 ## Material for MkDocs Insiders
 
+### 3.1.5 <small>_ October 28, 2021</small> { id="3.1.5" }
+
+- Fixed #3144: Rogue link when using tags with auto-populated navigation
+- Fixed #3147: Code block line numbers appear in search results
+- Fixed #3158: Social cards do not strip HTML tags from title
+
 ### 3.1.4 <small>_ October 17, 2021</small> { id="3.1.4" }
 
 - Fixed #2974: Text cropped with other fonts than `Roboto` in social plugin