diff --git a/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js b/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
index c8e2a0f5ea988..67d1a29f0ab03 100644
--- a/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
+++ b/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
@@ -87,7 +87,7 @@ describe('ReactDOMServerPartialHydration', () => {
   });
 
   // Note: This is based on a similar component we use in www. We can delete
-  // once the extra div wrapper is no longer neccessary.
+  // once the extra div wrapper is no longer necessary.
   function LegacyHiddenDiv({children, mode}) {
     return (
       <div hidden={mode === 'hidden'}>
diff --git a/packages/react-refresh/src/__tests__/ReactFresh-test.js b/packages/react-refresh/src/__tests__/ReactFresh-test.js
index 5e4a766640ad2..02295a8d98ecd 100644
--- a/packages/react-refresh/src/__tests__/ReactFresh-test.js
+++ b/packages/react-refresh/src/__tests__/ReactFresh-test.js
@@ -76,7 +76,7 @@ describe('ReactFresh', () => {
   }
 
   // Note: This is based on a similar component we use in www. We can delete
-  // once the extra div wrapper is no longer neccessary.
+  // once the extra div wrapper is no longer necessary.
   function LegacyHiddenDiv({children, mode}) {
     return (
       <div hidden={mode === 'hidden'}>