diff --git a/README.md b/README.md
index 54e3dfc..1f98ef8 100644
--- a/README.md
+++ b/README.md
@@ -25,4 +25,6 @@
 - [x] Python
   - [Day 11](./day-11)
 - [] Ruby
-- [] TypeScript
+- [x] TypeScript
+  - [Day 12](./day-12)
+