diff --git a/PROGRESS.md b/PROGRESS.md
index 872cab4..28a936c 100644
--- a/PROGRESS.md
+++ b/PROGRESS.md
@@ -4,6 +4,19 @@ Source of truth for current development state.
 ---
 All phases complete. **v1.0.0 tagged.** All packages pass `go test ./...`; `golangci-lint run ./...` clean (pre-existing warnings only).
 
+### 2026-03-15 — Makefile: docker image cleanup
+
+**Task:** Ensure `make clean` removes Docker build images; add dedicated `docker-clean` target.
+
+**Changes:**
+- `clean` target now runs `docker rmi mcias:$(VERSION) mcias:latest` (errors suppressed so clean works without Docker).
+- New `docker-clean` target removes the versioned and `latest` tags and prunes dangling images with the mcias label.
+- Header comment and `help` target updated to document `docker-clean`.
+
+**Verification:** `go build ./...`, `go test ./...`, `golangci-lint run ./...` all clean.
+
+---
+
 ### 2026-03-15 — Fix Swagger server URLs
 
 **Task:** Update Swagger `servers` section to use correct auth server URLs.