diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22a5b48..1ba991f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,14 @@ Tags follow the pi npm version: `v{pi_version}[letter]` — bare tag for the fir
 
 ## Unreleased
 
+## v0.75.4 — 2026-05-21
+
+pi `0.75.3` → `0.75.4` bump (one upstream patch release). Plus the AGENTS.md documentation-drift sweep clause that landed on `main` between v0.75.3 and now.
+
+- **Bump:** pi `@earendil-works/pi-coding-agent@0.75.4` baked at `/usr/bin/pi` (via `PI_VERSION=latest` resolving to 0.75.4 at build time — no Dockerfile change needed).
+- **AGENTS.md:** documentation drift sweep as explicit pre-commit workflow step (commit `ae6253a`). Companion clause added across the wider repo set the same day.
+- No image-side changes beyond the pi npm version. Built on `joakimp/opencode-devbox:base-latest` which itself is unchanged (cache-hit on `base-35ee5fe7861a` since v1.14.50b).
+
 ## v0.75.3 — 2026-05-18
 
 pi `0.74.0` → `0.75.3` bump (one upstream minor + three patch releases since the initial pi-devbox release on 2026-05-14).