diff --git a/notes.YAML-tmLanguage b/notes.YAML-tmLanguage
index af5f4fa..1e22804 100644
--- a/notes.YAML-tmLanguage
+++ b/notes.YAML-tmLanguage
@@ -513,7 +513,7 @@ patterns:
     '1': {name: variable.language.notes}
 - comment: Headers
   name: entity.name.tag.notes
-  match: ^([A-Z].*\:)$
+  match: ^(\p{Lu}.*\:)$
 - comment: Proper headers
   name: entity.name.tag.notes
   match: ^([-=]+\s?\w[\w\s]*[\-=]+)
diff --git a/notes.tmLanguage b/notes.tmLanguage
index a4855c5..1a08d95 100644
--- a/notes.tmLanguage
+++ b/notes.tmLanguage
@@ -1938,7 +1938,7 @@
 			<key>comment</key>
 			<string>Headers</string>
 			<key>match</key>
-			<string>^([A-Z].*\:)$</string>
+			<string>^(\p{Lu}.*\:)$</string>
 			<key>name</key>
 			<string>entity.name.tag.notes</string>
 		</dict>
diff --git a/tnotes.tmLanguage b/tnotes.tmLanguage
index 5667dec..eb1ab91 100644
--- a/tnotes.tmLanguage
+++ b/tnotes.tmLanguage
@@ -1938,7 +1938,7 @@
 			<key>comment</key>
 			<string>Headers</string>
 			<key>match</key>
-			<string>^([A-Z].*\:)$</string>
+			<string>^(\p{Lu}.*\:)$</string>
 			<key>name</key>
 			<string>entity.name.tag.notes</string>
 		</dict>