diff --git a/package-lock.json b/package-lock.json
index 6df2735..de9b3f5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "e2e"
       ],
       "dependencies": {
-        "@accordproject/cicero-core": "^2.0.0",
+        "@accordproject/cicero-core": "^2.1.1",
         "@accordproject/concerto-codegen": "4.1.3",
         "@accordproject/concerto-core": "4.1.4",
         "@accordproject/concerto-util": "4.1.4",
@@ -101,9 +101,9 @@
       "license": "MIT"
     },
     "node_modules/@accordproject/cicero-core": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/cicero-core/-/cicero-core-2.0.0.tgz",
-      "integrity": "sha512-3Hhsxcczwu/3mLfqDnps7lnIJ2P5CUOHN01wk4T71yOmOtdW8ur5MNYOwukBmOdWRs0h7Bh/pSJdcwjOkmnwaA==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@accordproject/cicero-core/-/cicero-core-2.1.1.tgz",
+      "integrity": "sha512-1OkV41WYM7zJhwSjDUOkJfj36OmZNxwEWFATec8Bt2dKKtdijU4T1T/K0M/NriI1W3C/eeSIDTdT/UITzUnvRg==",
       "license": "Apache-2.0",
       "dependencies": {
         "@accordproject/concerto-core": "4.1.4",
diff --git a/package.json b/package.json
index 9b7499b..af1f762 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
   "author": "accordproject.org",
   "license": "Apache-2.0",
   "dependencies": {
-    "@accordproject/cicero-core": "^2.0.0",
+    "@accordproject/cicero-core": "^2.1.1",
     "@accordproject/concerto-codegen": "4.1.3",
     "@accordproject/concerto-core": "4.1.4",
     "@accordproject/concerto-util": "4.1.4",
diff --git a/test/TemplateArchiveProcessor.test.ts b/test/TemplateArchiveProcessor.test.ts
index 94f3c92..661379c 100644
--- a/test/TemplateArchiveProcessor.test.ts
+++ b/test/TemplateArchiveProcessor.test.ts
@@ -1,36 +1,10 @@
-import { cpSync, mkdtempSync, readFileSync, writeFileSync } from 'fs';
+import { cpSync, mkdtempSync, writeFileSync } from 'fs';
 import os from 'os';
 import path from 'path';
 import {Template} from '@accordproject/cicero-core';
 import { TemplateArchiveProcessor, InitResponse, TriggerResponse } from '../src/TemplateArchiveProcessor';
 
 const TEMPLATE_DIR = 'test/archives/latedeliveryandpenalty-typescript';
-const TEMPLATE_MODEL_DIR = path.join(TEMPLATE_DIR, 'model');
-
-function mockArchiveModelFetches() {
-    const originalFetch = global.fetch.bind(global);
-    const modelByUrl = new Map([
-        ['https://models.accordproject.org/time@0.3.0.cto', readFileSync(path.join(TEMPLATE_MODEL_DIR, '@models.accordproject.org.time@0.3.0.cto'), 'utf-8')],
-        ['https://models.accordproject.org/accordproject/contract@0.2.0.cto', readFileSync(path.join(TEMPLATE_MODEL_DIR, '@models.accordproject.org.accordproject.contract@0.2.0.cto'), 'utf-8')],
-        ['https://models.accordproject.org/accordproject/runtime@0.2.0.cto', readFileSync(path.join(TEMPLATE_MODEL_DIR, '@models.accordproject.org.accordproject.runtime@0.2.0.cto'), 'utf-8')]
-    ]);
-
-    return jest.spyOn(global, 'fetch').mockImplementation(async (input: string | URL | Request, init?: RequestInit) => {
-        const url = typeof input === 'string' ? input : input instanceof URL ? input.toString() : input.url;
-        const model = modelByUrl.get(url);
-
-        if (model !== undefined) {
-            return new Response(model, {
-                status: 200,
-                headers: {
-                    'content-type': 'text/plain'
-                }
-            });
-        }
-
-        return originalFetch(input, init);
-    });
-}
 
 async function loadTemplate(logicSource?: string): Promise<Template> {
     if (!logicSource) {
@@ -45,14 +19,6 @@ async function loadTemplate(logicSource?: string): Promise<Template> {
 }
 
 describe('template archive processor', () => {
-    beforeEach(() => {
-        mockArchiveModelFetches();
-    });
-
-    afterEach(() => {
-        jest.restoreAllMocks();
-    });
-
     test('should draft a template', async () => {
         const template = await loadTemplate();
         const templateArchiveProcessor = new TemplateArchiveProcessor(template);
@@ -245,7 +211,7 @@ export default class PlainLogic {
     };
 
     it('rejects a request whose type does not extend the runtime Request', async () => {
-        const template = await Template.fromDirectory('test/archives/latedeliveryandpenalty-typescript', {offline: true});
+        const template = await loadTemplate();
         const templateArchiveProcessor = new TemplateArchiveProcessor(template);
         const stateResponse = await templateArchiveProcessor.init(VALID_DATA);
         // A well-formed Response object is a valid Concerto instance (so it passes
@@ -262,7 +228,7 @@ export default class PlainLogic {
     });
 
     it('init does not throw for a stateless template (empty placeholder state)', async () => {
-        const template = await Template.fromDirectory('test/archives/latedeliveryandpenalty-typescript', {offline: true});
+        const template = await loadTemplate();
         const templateArchiveProcessor = new TemplateArchiveProcessor(template);
         // A stateless template (no compiled `init`) yields the empty placeholder `{ state: {} }`.
         // init() must not try to serialize/validate that classless placeholder.
@@ -273,7 +239,7 @@ export default class PlainLogic {
     });
 
     it('does not exempt a non-empty state that is missing $class (only {} is skipped)', async () => {
-        const template = await Template.fromDirectory('test/archives/latedeliveryandpenalty-typescript', {offline: true});
+        const template = await loadTemplate();
         const templateArchiveProcessor = new TemplateArchiveProcessor(template);
         // A non-empty classless object is not the stateless placeholder - it must still be
         // validated (and rejected), not silently skipped.
diff --git a/test/TemplateMarkInterpreter.test.ts b/test/TemplateMarkInterpreter.test.ts
index 69eea5a..d6e84ed 100644
--- a/test/TemplateMarkInterpreter.test.ts
+++ b/test/TemplateMarkInterpreter.test.ts
@@ -36,6 +36,10 @@ const CLAUSE_LIBRARY = {
 
 const GOOD_TEMPLATES_ROOT = './test/templates/good';
 const BAD_TEMPLATES_ROOT = './test/templates/bad';
+const MONEY_MODEL_FILES = [
+    '@models.accordproject.org.money@0.3.0.cto',
+    '@models.accordproject.org.money@1.0.0.cto'
+];
 
 describe('templatemark interpreter', () => {
     jest.setTimeout(30000);
@@ -70,8 +74,10 @@ describe('templatemark interpreter', () => {
             const data = JSON.parse(readFileSync(`${GOOD_TEMPLATES_ROOT}/${templateName}/data.json`, 'utf-8'));
 
             const modelManager = new ModelManager();
-            modelManager.addCTOModel(model, undefined, true);
-            await modelManager.updateExternalModels();
+            MONEY_MODEL_FILES.forEach(file => {
+                modelManager.addCTOModel(readFileSync(path.join(__dirname, 'models', file), 'utf-8'), file);
+            });
+            modelManager.addCTOModel(model);
             const engine = new TemplateMarkInterpreter(modelManager, CLAUSE_LIBRARY);
 
             const templateMarkTransformer = new TemplateMarkTransformer();
diff --git a/test/models/@models.accordproject.org.money@0.3.0.cto b/test/models/@models.accordproject.org.money@0.3.0.cto
new file mode 100644
index 0000000..9da7fcb
--- /dev/null
+++ b/test/models/@models.accordproject.org.money@0.3.0.cto
@@ -0,0 +1,34 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+concerto version "^3.0.0"
+
+namespace org.accordproject.money@0.3.0
+
+/**
+ * Represents an amount of money.
+ */
+concept MonetaryAmount {
+  o Double doubleValue
+  o CurrencyCode currencyCode
+}
+
+/**
+ * Currency codes required by the offline template fixtures.
+ */
+enum CurrencyCode {
+  o EUR
+  o GBP
+  o USD
+}
diff --git a/test/models/@models.accordproject.org.money@1.0.0.cto b/test/models/@models.accordproject.org.money@1.0.0.cto
new file mode 100644
index 0000000..cf93fce
--- /dev/null
+++ b/test/models/@models.accordproject.org.money@1.0.0.cto
@@ -0,0 +1,52 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+concerto version "^3.0.0"
+
+namespace org.accordproject.money@1.0.0
+
+/**
+ * An ISO 4217 alphabetic currency code.
+ */
+scalar CurrencyCode extends String regex=/^[A-Z]{3}$/
+
+/**
+ * An approximate floating-point monetary amount.
+ */
+concept ApproximateAmount {
+  o Double doubleValue
+  o CurrencyCode currencyCode
+}
+
+/**
+ * A unit of account.
+ */
+concept Unit {
+  o String code
+  o String scheme default="iso4217"
+  o String identifier optional
+  o Integer scale range=[0,]
+}
+
+/**
+ * An arbitrary-precision integer encoded as a string.
+ */
+scalar BigInteger extends String regex=/^(0|-?[1-9][0-9]*)$/
+
+/**
+ * A precise fixed-point monetary amount.
+ */
+concept PreciseAmount {
+  o BigInteger unscaledValue
+  o Unit unit
+}
diff --git a/test/templates/good/optional-nested/model.cto b/test/templates/good/optional-nested/model.cto
index d570412..0ade597 100644
--- a/test/templates/good/optional-nested/model.cto
+++ b/test/templates/good/optional-nested/model.cto
@@ -1,7 +1,5 @@
 namespace org.example.ap2.mandate@1.1.1
 import org.accordproject.money@0.3.0.{MonetaryAmount} from https://models.accordproject.org/money@0.3.0.cto
-import org.accordproject.time@0.3.0.{Duration} from https://models.accordproject.org/time@0.3.0.cto
-import org.accordproject.party@0.2.0.{Party} from https://models.accordproject.org/accordproject/party@0.2.0.cto
 
 concept Address {
     o String line1
@@ -44,4 +42,4 @@ concept TemplateData {
     o String[] favoriteColors
     o AP2MandateData mandate
     o Order order
-}
\ No newline at end of file
+}