diff --git a/src/sophios/schemas/wic_schema.py b/src/sophios/schemas/wic_schema.py
index 48b35260..e4dcd551 100644
--- a/src/sophios/schemas/wic_schema.py
+++ b/src/sophios/schemas/wic_schema.py
@@ -7,6 +7,7 @@
 import graphviz
 from jsonschema import Draft202012Validator
 from referencing import Registry, Resource
+from referencing.jsonschema import DRAFT202012
 import yaml
 
 import sophios
@@ -681,7 +682,6 @@ def get_validator(tools_cwl: Tools, yml_stems: List[str], schema_store: Dict[str
 
     schema = wic_main_schema(tools_cwl, yml_stems, schema_store, hypothesis)
     schema_store[schema['$id']] = schema
-    schema_store['wic_tag'] = wic_tag_schema(hypothesis)
     if write_to_disk:
         with open('autogenerated/schemas/wic.json', mode='w', encoding='utf-8') as f:
             f.write(json.dumps(schema, indent=2))
@@ -697,9 +697,11 @@ def get_validator(tools_cwl: Tools, yml_stems: List[str], schema_store: Dict[str
     # The $ref tag refers to URIs defined in $id tags, NOT relative paths on
     # the local filesystem! We need to create a global mapping between ids and schemas
     # i.e. schema_store.
-    resource: Resource = Resource.from_contents(schema_store)
-    initial_registry: Registry = Registry()
-    registry: Registry = resource @ initial_registry
+    schema_store_resource: Resource = Resource(contents=schema_store, specification=DRAFT202012)  # type: ignore
+    registry: Registry = Registry().with_resource(uri="wic_schema_store", resource=schema_store_resource)
+    wic_tag_schema_resource: Resource = Resource(contents=wic_tag_schema(
+        hypothesis), specification=DRAFT202012)  # type: ignore
+    registry = registry.with_resource(uri="wic_tag", resource=wic_tag_schema_resource)
     """ Use check_schema to 'first verify that the provided schema is
     itself valid, since not doing so can lead to less obvious error
     messages and fail in less obvious or consistent ways.'