diff --git a/src/mozilla_taskgraph/transforms/replicate.py b/src/mozilla_taskgraph/transforms/replicate.py
index 4550b2e..cd52114 100644
--- a/src/mozilla_taskgraph/transforms/replicate.py
+++ b/src/mozilla_taskgraph/transforms/replicate.py
@@ -11,7 +11,7 @@
 from taskcluster.exceptions import TaskclusterRestFailure
 from taskgraph.transforms.base import TransformSequence
 from taskgraph.util.attributes import attrmatch
-from taskgraph.util.schema import Schema
+from taskgraph.util.schema import LegacySchema
 from taskgraph.util.taskcluster import (
     find_task_id,
     get_artifact,
@@ -19,7 +19,7 @@
 )
 from voluptuous import ALLOW_EXTRA, Any, Optional, Required
 
-REPLICATE_SCHEMA = Schema(
+REPLICATE_SCHEMA = LegacySchema(
     {
         Required(
             "replicate",
diff --git a/src/mozilla_taskgraph/transforms/scriptworker/release_artifacts.py b/src/mozilla_taskgraph/transforms/scriptworker/release_artifacts.py
index c0066a1..6699083 100644
--- a/src/mozilla_taskgraph/transforms/scriptworker/release_artifacts.py
+++ b/src/mozilla_taskgraph/transforms/scriptworker/release_artifacts.py
@@ -10,13 +10,13 @@
 
 from taskgraph.transforms.base import TransformSequence
 from taskgraph.transforms.task import task_description_schema
-from taskgraph.util.schema import Schema
+from taskgraph.util.schema import LegacySchema
 from taskgraph.util.workertypes import worker_type_implementation
 from voluptuous import Extra, Optional, Required
 
 transforms = TransformSequence()
 
-release_artifacts_schema = Schema(
+release_artifacts_schema = LegacySchema(
     {
         Required("worker-type"): task_description_schema["worker-type"],
         Optional("release-artifacts"): [str],
diff --git a/src/mozilla_taskgraph/transforms/scriptworker/shipit/mark_as_shipped.py b/src/mozilla_taskgraph/transforms/scriptworker/shipit/mark_as_shipped.py
index 75fabe4..8302a33 100644
--- a/src/mozilla_taskgraph/transforms/scriptworker/shipit/mark_as_shipped.py
+++ b/src/mozilla_taskgraph/transforms/scriptworker/shipit/mark_as_shipped.py
@@ -6,12 +6,12 @@
 from textwrap import dedent
 
 from taskgraph.transforms.base import TransformSequence
-from taskgraph.util.schema import Schema, optionally_keyed_by, resolve_keyed_by
+from taskgraph.util.schema import LegacySchema, optionally_keyed_by, resolve_keyed_by
 from voluptuous import Extra, Optional
 
 transforms = TransformSequence()
 
-mark_as_shipped_schema = Schema(
+mark_as_shipped_schema = LegacySchema(
     {
         Optional("name"): str,
         Optional("shipit-product"): optionally_keyed_by("build-type", str),