diff --git a/.markdownlint.yaml b/.markdownlint.yaml
index abfdd2c..3c0b6ac 100644
--- a/.markdownlint.yaml
+++ b/.markdownlint.yaml
@@ -1,3 +1,3 @@
 # Commitizen produces duplicate headings in CHANGELOG.md.
-no-duplicate-header:
+no-duplicate-heading:
   siblings_only: true