diff --git a/TODO.md b/TODO.md
index 3e08aeb..e6c3b1e 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,3 +1,4 @@
 # TODO
 
-- ❌ remove dependency on decorators
+- ✔ remove dependency on decorators
+- ❌ Synchronized should be a mixin