diff --git a/Dockerfile b/Dockerfile
index 138abfa..d8fae5c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,10 @@
 # Web build stage — compile SPA from source
 # node:22-alpine, 2026-03-09
 FROM node@sha256:8094c002d08262dba12645a3b4a15cd6cd627d30bc782f53229a2ec13ee22a00 AS web-builder
-# yarn 1.22.22, the version script/bootstrap pins, checked against the
-# sha512 of its npm package. corepack enable replaces the yarn the image
-# ships with corepack's own, which runs the version activated here.
+# yarn 1.22.22, 2026-10-06
+# The version script/bootstrap pins, checked against the sha512 of its
+# npm package. corepack enable replaces the yarn the image ships with
+# corepack's own, which runs the version activated here.
 RUN corepack enable \
     && corepack prepare yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e --activate
 WORKDIR /web