diff --git a/scripts/prepare-pyodide.js b/scripts/prepare-pyodide.js
index d83598343e..73ac1d8642 100644
--- a/scripts/prepare-pyodide.js
+++ b/scripts/prepare-pyodide.js
@@ -22,7 +22,7 @@ const packages = [
 // static/pyodide/ so that the browser can install them offline via micropip.
 // Packages already provided by the Pyodide distribution (click, platformdirs,
 // typing_extensions, etc.) do NOT need to be listed here.
-const pypiPackages = ['black', 'pathspec', 'mypy_extensions'];
+const pypiPackages = ['black', 'pathspec', 'mypy_extensions', 'pytokens'];
 
 import { loadPyodide } from 'pyodide';
 import { setGlobalDispatcher, ProxyAgent } from 'undici';