diff --git a/TODO.md b/TODO.md
index f1a2742..7ed1aca 100644
--- a/TODO.md
+++ b/TODO.md
@@ -32,10 +32,13 @@ After some additional development:
 - [x] Assembler
 - [ ] VM execution
   - [ ] Stack operations (nil, integer, float, string, function)
-    - [ ] Integer
+    - [x] Integer
     - [ ] Float
     - [ ] String
   - [ ] Expressions
+    - [x] Integer
+    - [ ] Float
+    - [ ] String
   - [ ] Local/global variables
   - [ ] Functions
   - [ ] Constants