diff --git a/@commitlint/message/src/index.ts b/@commitlint/message/src/index.ts
index 9639358ebc..6eabef8197 100644
--- a/@commitlint/message/src/index.ts
+++ b/@commitlint/message/src/index.ts
@@ -1,5 +1,5 @@
 export default message;
 
-function message(input: any[] = []) {
+function message(input: (string | null | undefined)[] = []) {
 	return input.filter(Boolean).join(' ');
 }