diff --git a/engine/README.md b/engine/README.md
index 7a993cf..372e24c 100644
--- a/engine/README.md
+++ b/engine/README.md
@@ -1,3 +1,5 @@
+<!-- markdownlint-disable single-h1 -->
+
 # VOICEVOX エンジン利用規約
 
 ## 許諾内容