diff --git a/TODO.md b/TODO.md
index 6144319..99d1cf0 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,6 @@
 # Tag support -
 - Handle remaining tags
+- Handle reference-style links and images
 
 # Other Features -
 1. Expose (allow setting) remark-stringify config