diff --git a/src/helpers/resolveUpdatePriority.ts b/src/helpers/resolveUpdatePriority.ts
index d78c1d1d..ef5836fc 100644
--- a/src/helpers/resolveUpdatePriority.ts
+++ b/src/helpers/resolveUpdatePriority.ts
@@ -2,7 +2,7 @@ import {
     ContinuousEventPriority,
     DefaultEventPriority,
     DiscreteEventPriority,
-} from 'react-reconciler/constants';
+} from 'react-reconciler/constants.js';
 import { store } from '../store';
 import { log } from './log';
 
diff --git a/src/store.ts b/src/store.ts
index a6d886c1..18ee0cc0 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -1,4 +1,4 @@
-import { DefaultEventPriority } from 'react-reconciler/constants';
+import { DefaultEventPriority } from 'react-reconciler/constants.js';
 import { type Root } from './typedefs/Root';
 
 const store: {