diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3d3860..d529cd7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 1.5.1 (2026-09-23)
+
 ### New Features
 
 - feat: Report a key nested inside an option that the schema does not declare, such as a typo in a nested setting. Only top-level keys were checked before. (#60)
diff --git a/CITATION.cff b/CITATION.cff
index 0831a32..599c46b 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -9,5 +9,5 @@ authors:
 repository-code: "https://github.com/mcanouil/quarto-code-window"
 url: "https://m.canouil.dev/quarto-code-window/"
 license: "MIT License"
-date-released: "2026-09-06"
-version: 1.5.0
+date-released: "2026-09-23"
+version: 1.5.1
diff --git a/README.md b/README.md
index 7801ed6..9a06121 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 ## Installation
 
 ```bash
-quarto add mcanouil/quarto-code-window@1.5.0
+quarto add mcanouil/quarto-code-window@1.5.1
 ```
 
 This will install the extension under the `_extensions` subdirectory.
diff --git a/_extensions/code-window/_extension.yml b/_extensions/code-window/_extension.yml
index 0f02282..d0f7e1c 100644
--- a/_extensions/code-window/_extension.yml
+++ b/_extensions/code-window/_extension.yml
@@ -1,6 +1,6 @@
 title: Code Window
 author: Mickaël Canouil
-version: 1.5.0
+version: 1.5.1
 quarto-required: ">=1.9.36"
 contributes:
   filters: