diff --git a/TODO.md b/TODO.md
index 4faae249..30a5f756 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,7 +2,6 @@
 
 ## Working On
 * Workflow
-    * Attributes
     * **Workflow to C++ code generation with hint**.
         * Don't create IValueList if apply `{1 2 3}` on `List<int>` argument.
         * Multiple file support