diff --git a/progress.md b/progress.md
index 081d9c7..e70c507 100644
--- a/progress.md
+++ b/progress.md
@@ -37,7 +37,7 @@
  - [x] 5.2 Recursion
  - [x] 5.3 Multiple Return Values
  - [x] 5.4 Errors
- - [ ] 5.5 Function Values
+ - [x] 5.5 Function Values
  - [ ] 5.6 Anonymous Functions
  - [ ] 5.7 Variadic Functions
  - [ ] 5.8 Deferred Function Calls