diff --git a/src/server/ssr.mjs b/src/server/ssr.mjs
index 22e1a33..1f2051d 100644
--- a/src/server/ssr.mjs
+++ b/src/server/ssr.mjs
@@ -1,4 +1,4 @@
-import ReactDOMServer from 'react-dom/server'
+import ReactDOMServer from 'react-dom/server.node.js'
 import { GraphQL } from '../universal/GraphQL.mjs'
 
 /**
diff --git a/src/test/GraphQL.mjs b/src/test/GraphQL.mjs
index 1fb35ac..d8b64c1 100644
--- a/src/test/GraphQL.mjs
+++ b/src/test/GraphQL.mjs
@@ -1,4 +1,4 @@
-import 'cross-fetch/polyfill'
+import 'cross-fetch/dist/node-polyfill.js'
 import { GraphQLInt } from 'graphql'
 import Koa from 'koa'
 import t from 'tap'
diff --git a/src/test/ssr.mjs b/src/test/ssr.mjs
index 357ba25..7a76017 100644
--- a/src/test/ssr.mjs
+++ b/src/test/ssr.mjs
@@ -1,4 +1,4 @@
-import 'cross-fetch/polyfill'
+import 'cross-fetch/dist/node-polyfill.js'
 import React from 'react'
 import t from 'tap'
 import { ssr } from '../server/ssr.mjs'
diff --git a/src/test/useGraphQL.mjs b/src/test/useGraphQL.mjs
index bd74b14..c57e142 100644
--- a/src/test/useGraphQL.mjs
+++ b/src/test/useGraphQL.mjs
@@ -1,6 +1,6 @@
-import 'cross-fetch/polyfill'
+import 'cross-fetch/dist/node-polyfill.js'
 import React from 'react'
-import ReactDOMServer from 'react-dom/server'
+import ReactDOMServer from 'react-dom/server.node.js'
 import ReactTestRenderer from 'react-test-renderer'
 import t from 'tap'
 import { GraphQL } from '../universal/GraphQL.mjs'