diff --git a/tools/build_rules/js/cypress.config.js b/tools/build_rules/js/cypress.config.js
index c8d6988..e991016 100644
--- a/tools/build_rules/js/cypress.config.js
+++ b/tools/build_rules/js/cypress.config.js
@@ -1,6 +1,6 @@
-const {defineConfig} = require('cypress');
+import {defineConfig} from 'cypress';
 
-module.exports = defineConfig({
+export default defineConfig({
   e2e: {
     specPattern: ['*.cy.js'],
     supportFile: false,
diff --git a/tools/build_rules/js/ts.bzl b/tools/build_rules/js/ts.bzl
index a5b0770..01b8bfe 100644
--- a/tools/build_rules/js/ts.bzl
+++ b/tools/build_rules/js/ts.bzl
@@ -15,6 +15,6 @@
 
         # TODO(phil): Is this a good idea? I don't _actually_ know what this
         # does.
-        supports_workers = False,
+        supports_workers = 0,
         **kwargs
     )