diff --git a/__tests__/context.test.ts b/__tests__/context.test.ts
index f38ce02..d9abe5d 100644
--- a/__tests__/context.test.ts
+++ b/__tests__/context.test.ts
@@ -1,5 +1,4 @@
 import {beforeEach, describe, expect, test, it, vi} from 'vitest';
-import {Context} from '@actions/github/lib/context.js';
 import {Git} from '@docker/actions-toolkit/lib/git.js';
 import {Toolkit} from '@docker/actions-toolkit/lib/toolkit.js';
 
@@ -98,11 +97,11 @@ describe('getContext', () => {
     expect(ctx.commitDate).toEqual(new Date('2024-11-13T13:42:28.000Z'));
   });
   it('git', async () => {
-    vi.spyOn(Git, 'context').mockImplementation((): Promise<Context> => {
+    vi.spyOn(Git, 'context').mockImplementation((): Promise<context.Context> => {
       return Promise.resolve({
         ref: 'refs/heads/git-test',
         sha: 'git-test-sha'
-      } as Context);
+      } as context.Context);
     });
     vi.spyOn(Git, 'commitDate').mockImplementation(async (): Promise<Date> => {
       return new Date('2023-01-01T13:42:28.000Z');
diff --git a/__tests__/meta.test.ts b/__tests__/meta.test.ts
index 4e64894..a2e1dfd 100644
--- a/__tests__/meta.test.ts
+++ b/__tests__/meta.test.ts
@@ -3,12 +3,12 @@ import * as fs from 'fs';
 import * as path from 'path';
 import * as dotenv from 'dotenv';
 
-import {Context} from '@actions/github/lib/context.js';
 import {GitHub} from '@docker/actions-toolkit/lib/github.js';
 import {Toolkit} from '@docker/actions-toolkit/lib/toolkit.js';
 import {GitHubRepo} from '@docker/actions-toolkit/lib/types/github.js';
 
 import {ContextSource, getContext, getInputs, Inputs} from '../src/context.js';
+import type {Context as MetadataContext} from '../src/context.js';
 import {Meta, Version} from '../src/meta.js';
 
 import repoFixture from './fixtures/repo.json' with {type: 'json'};
@@ -38,16 +38,28 @@ beforeEach(() => {
       delete process.env[key];
     }
   });
-
-  vi.spyOn(GitHub, 'context', 'get').mockImplementation((): Context => {
-    //@ts-expect-error partial info
+  vi.spyOn(GitHub, 'context', 'get').mockImplementation((): MetadataContext => {
+    const repository = process.env.GITHUB_REPOSITORY || 'docker/repo';
+    const [owner, repo] = repository.includes('/') ? repository.split('/', 2) : ['docker', 'repo'];
+    const eventPath = process.env.GITHUB_EVENT_PATH;
+    const payload = eventPath && fs.existsSync(eventPath) ? JSON.parse(fs.readFileSync(eventPath, 'utf8')) : {};
     return {
-      ...new Context(),
-      repo: {
-        owner: 'docker',
-        repo: 'repo'
-      }
-    };
+      payload,
+      eventName: process.env.GITHUB_EVENT_NAME || '',
+      sha: process.env.GITHUB_SHA || '',
+      ref: process.env.GITHUB_REF || '',
+      workflow: process.env.GITHUB_WORKFLOW || '',
+      action: process.env.GITHUB_ACTION || '',
+      actor: process.env.GITHUB_ACTOR || '',
+      job: process.env.GITHUB_JOB || '',
+      runAttempt: +(process.env.GITHUB_RUN_ATTEMPT || 1),
+      runNumber: +(process.env.GITHUB_RUN_NUMBER || 0),
+      runId: +(process.env.GITHUB_RUN_ID || 0),
+      apiUrl: process.env.GITHUB_API_URL || 'https://api.github.com',
+      serverUrl: process.env.GITHUB_SERVER_URL || 'https://github.com',
+      graphqlUrl: process.env.GITHUB_GRAPHQL_URL || 'https://api.github.com/graphql',
+      repo: {owner, repo}
+    } as MetadataContext;
   });
 });
 
diff --git a/src/context.ts b/src/context.ts
index 61c61d5..56abffd 100644
--- a/src/context.ts
+++ b/src/context.ts
@@ -1,11 +1,12 @@
 import * as core from '@actions/core';
 
-import {Context as GithubContext} from '@actions/github/lib/context.js';
 import {Util} from '@docker/actions-toolkit/lib/util.js';
 import {Git} from '@docker/actions-toolkit/lib/git.js';
 import {GitHub} from '@docker/actions-toolkit/lib/github.js';
 import {Toolkit} from '@docker/actions-toolkit/lib/toolkit.js';
 
+type GithubContext = typeof GitHub.context;
+
 export interface Context extends GithubContext {
   commitDate: Date;
 }