diff --git a/src/tin_lite/catalog.py b/src/tin_lite/catalog.py
index 211143a2..3a6658b1 100644
--- a/src/tin_lite/catalog.py
+++ b/src/tin_lite/catalog.py
@@ -4613,6 +4613,9 @@ def executor_replaced_by(builtin_key: str, executor: str) -> str | None:
         organic_system.REFRESH_KEY,
         # v7 pins the two weekly measurement packages, with their code, beside the steps.
         *organic_system.MEASURE_STEPS.values(),
+        # v6 on, the technical and delivery steps run website.change; without it here a fresh
+        # registry has no website.change file at the system's revision.
+        organic_system.WEBSITE_KEY,
     ),
     growth_onboarding.KEY: tuple(growth_onboarding.STEPS.values()),
     # content.plan 1.0.0 starts its planning agent at the plan's own pinned revision.
diff --git a/tests/test_registry_recipe_publication.py b/tests/test_registry_recipe_publication.py
index 340b6f69..e4eb2787 100644
--- a/tests/test_registry_recipe_publication.py
+++ b/tests/test_registry_recipe_publication.py
@@ -52,7 +52,12 @@ async def test_parent_publication_pins_children_on_first_sync_and_child_only_upg
     await catalog.sync_builtin_workflows(database=db, storage=storage, system_wiki=WIKI)
     first = db.rows[parent.id].current_commit_sha
     for child in catalog.BUILTIN_WORKFLOWS:
-        if child.key not in (*organic_system.STEPS.values(), organic_system.REFRESH_KEY):
+        if child.key not in (
+            *organic_system.STEPS.values(),
+            *organic_system.WEBSITE_STEPS.values(),
+            *organic_system.MEASURE_STEPS.values(),
+            organic_system.REFRESH_KEY,
+        ):
             continue
         definition, resources = child.definition_and_files_with_wiki(WIKI)
         assert json.loads(storage.revisions[first][child.definition_path]) == definition
@@ -74,6 +79,18 @@ async def test_parent_publication_pins_children_on_first_sync_and_child_only_upg
     assert json.loads(storage.revisions[first][child.definition_path])["title"] == child.title
 
 
+def test_the_organic_system_pins_every_workflow_its_prepare_step_reads():
+    # A fresh registry (staging, a new install) only has these files at the system's revision
+    # if they are pinned; an older registry hid the gap because earlier commits carried them.
+    read = {
+        *organic_system.STEPS.values(),
+        *organic_system.WEBSITE_STEPS.values(),
+        *organic_system.MEASURE_STEPS.values(),
+        organic_system.REFRESH_KEY,
+    }
+    assert read <= set(catalog.pinned_children(organic_system.KEY))
+
+
 async def test_content_plan_revisions_carry_the_planning_agent():
     # content.plan 1.0.0 starts content.plan_research at its own pinned revision, and the
     # organic system starts content.plan at the system's: both revisions carry the agent.