diff --git a/docker/omnigraph-server.Dockerfile b/docker/omnigraph-server.Dockerfile
index 6ccd42ed..029380b0 100644
--- a/docker/omnigraph-server.Dockerfile
+++ b/docker/omnigraph-server.Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1@sha256:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
+# syntax=docker/dockerfile:1@sha256:4edf897a3ffa55b89f906fc8cc78afdb3f1834cc9c7083565e611a8a7d5fe99e
 #
 # omnigraph-server — witan's data tier (ADR-0009 decision point 2 / option 3).
 #
diff --git a/docker/witan.Dockerfile b/docker/witan.Dockerfile
index 530430da..92c137ec 100644
--- a/docker/witan.Dockerfile
+++ b/docker/witan.Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1@sha256:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
+# syntax=docker/dockerfile:1@sha256:4edf897a3ffa55b89f906fc8cc78afdb3f1834cc9c7083565e611a8a7d5fe99e
 #
 # witan — the MCP tier (ADR-0009). Packages the `witan` umbrella CLI (which
 # mounts `witan code` from witan-code) and runs it as a streamable-HTTP MCP