diff --git a/CHANGELOG b/CHANGELOG
index 12d1b65bd..83bb4cc75 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+mkdocs-material-5.5.13+insiders-1.5.1 (2020-09-21)
+
+  * Fixed content area stretching to whole width for long code blocks
+
 mkdocs-material-5.5.13+insiders-1.5.0 (2020-09-19)
 
   * Added support for autohiding table of contents when empty
diff --git a/docs/changelog.md b/docs/changelog.md
index 3a8fc236a..cac71bab1 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -6,6 +6,10 @@ template: overrides/main.html
 
 ## Material for MkDocs Insiders
 
+### 1.5.1 <small>_ September 21, 2020</small>
+
+* Fixed content area stretching to whole width for long code blocks
+
 ### 1.5.0 <small>_ September 19, 2020</small>
 
 * Added support for autohiding table of contents when empty