diff --git a/.editorconfig b/.editorconfig
index c01b6dd..7f8a751 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -7,6 +7,9 @@ guidelines = 120
 trim_trailing_whitespace = true
 insert_final_newline = true
 
+[*.yaml]
+indent_style = space
+
 [*.js.cmd]
 end_of_line = crlf
 charset = shift_jis