diff --git a/__tests__/lib/run.test.tsx b/__tests__/lib/run.test.tsx
new file mode 100644
index 000000000..e30b956fd
--- /dev/null
+++ b/__tests__/lib/run.test.tsx
@@ -0,0 +1,24 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+
+import { execute } from '../helpers';
+
+describe('run', () => {
+  it('allows providing imports', async () => {
+    const mdx = `Hello, world!`;
+    const Component = await execute(mdx, {}, { imports: { React } });
+
+    render(<Component />);
+
+    expect(screen.getByText('Hello, world!')).toBeInTheDocument();
+  });
+
+  it('merges the imports with the built-ins', async () => {
+    const mdx = `{user.test}`;
+    const Component = await execute(mdx, {}, { imports: { React } });
+
+    render(<Component />);
+
+    expect(screen.getByText('TEST')).toBeInTheDocument();
+  });
+});
diff --git a/lib/run.tsx b/lib/run.tsx
index f44f86b47..e48dd6fe2 100644
--- a/lib/run.tsx
+++ b/lib/run.tsx
@@ -49,7 +49,7 @@ const makeUseMDXComponents = (more: ReturnType<UseMdxComponents> = {}): UseMdxCo
 
 const run = async (string: string, _opts: RunOpts = {}) => {
   const { Fragment } = runtime as any;
-  const { components = {}, terms, variables, baseUrl, ...opts } = _opts;
+  const { components = {}, terms, variables, baseUrl, imports = {}, ...opts } = _opts;
   const executedComponents = Object.entries(components).reduce((memo, [tag, mod]) => {
     const { default: Content, toc, Toc, ...rest } = mod;
     memo[tag] = Content;
@@ -68,10 +68,10 @@ const run = async (string: string, _opts: RunOpts = {}) => {
       ...runtime,
       Fragment,
       baseUrl: import.meta.url,
-      imports: { React, user: User(variables) },
+      imports: { React, user: User(variables), ...imports },
       useMDXComponents,
       ...opts,
-    }) as Promise<RMDXModule>;
+    } as RunOptions) as Promise<RMDXModule>;
   };
 
   const { Toc: _Toc, toc, default: Content, ...exports } = await exec(string);