diff --git a/progress.md b/progress.md
index 444e978..99b29bc 100644
--- a/progress.md
+++ b/progress.md
@@ -97,7 +97,7 @@
 - [x] Chapter 11: Testing
  - [x] 11.1 The go test Tool
  - [ ] 11.2 Test Functions
- - [ ] 11.3 Coverage
+ - [x] 11.3 Coverage
  - [ ] 11.4 Benchmark Functions
  - [x] 11.5 Profiling
  - [x] 11.6 Example Functions