diff --git a/.changeset/angry-ears-prove.md b/.changeset/angry-ears-prove.md
new file mode 100644
index 00000000..394e6f87
--- /dev/null
+++ b/.changeset/angry-ears-prove.md
@@ -0,0 +1,5 @@
+---
+'preact-iso': patch
+---
+
+Support TS's "NodeNext" module resolution w/ `preact-iso`
diff --git a/packages/preact-iso/index.d.ts b/packages/preact-iso/index.d.ts
index 85d54f77..70ba4a2f 100644
--- a/packages/preact-iso/index.d.ts
+++ b/packages/preact-iso/index.d.ts
@@ -1,4 +1,4 @@
-export { default as prerender } from './prerender';
-export * from './router';
-export { default as lazy, ErrorBoundary } from './lazy';
-export { default as hydrate } from './hydrate';
+export { default as prerender } from './prerender.js';
+export * from './router.js';
+export { default as lazy, ErrorBoundary } from './lazy.js';
+export { default as hydrate } from './hydrate.js';