diff --git a/packages/react-dom/src/__tests__/ReactDOMConsoleErrorReportingLegacy-test.js b/packages/react-dom/src/__tests__/ReactDOMConsoleErrorReportingLegacy-test.js
index ec13fefb2082b..02e34f9322f10 100644
--- a/packages/react-dom/src/__tests__/ReactDOMConsoleErrorReportingLegacy-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMConsoleErrorReportingLegacy-test.js
@@ -100,7 +100,11 @@ describe('ReactDOMConsoleErrorReporting', () => {
 
       if (__DEV__) {
         expect(console.error.mock.calls).toEqual([
-          [expect.stringContaining('ReactDOM.render is no longer supported')],
+          [
+            expect.stringContaining(
+              'ReactDOM.render has not been supported since React 18',
+            ),
+          ],
         ]);
       } else {
         expect(console.error).not.toBeCalled();
@@ -163,7 +167,11 @@ describe('ReactDOMConsoleErrorReporting', () => {
         ]);
 
         expect(console.error.mock.calls).toEqual([
-          [expect.stringContaining('ReactDOM.render is no longer supported')],
+          [
+            expect.stringContaining(
+              'ReactDOM.render has not been supported since React 18',
+            ),
+          ],
         ]);
       } else {
         expect(console.warn).not.toBeCalled();
@@ -308,7 +316,11 @@ describe('ReactDOMConsoleErrorReporting', () => {
         ]);
 
         expect(console.error.mock.calls).toEqual([
-          [expect.stringContaining('ReactDOM.render is no longer supported')],
+          [
+            expect.stringContaining(
+              'ReactDOM.render has not been supported since React 18',
+            ),
+          ],
         ]);
       } else {
         expect(console.warn).not.toBeCalled();
@@ -455,7 +467,11 @@ describe('ReactDOMConsoleErrorReporting', () => {
         ]);
 
         expect(console.error.mock.calls).toEqual([
-          [expect.stringContaining('ReactDOM.render is no longer supported')],
+          [
+            expect.stringContaining(
+              'ReactDOM.render has not been supported since React 18',
+            ),
+          ],
         ]);
       } else {
         expect(console.warn).not.toBeCalled();
diff --git a/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js b/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
index ea43fc2c16dfc..b706f5f6a6472 100644
--- a/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
+++ b/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
@@ -331,7 +331,7 @@ describe('ReactDOMServerPartialHydration', () => {
       'Component',
       'Component',
       // Hydration mismatch is logged
-      'Hydration failed because the server rendered HTML didn\'t match the client.',
+      "Hydration failed because the server rendered HTML didn't match the client.",
       'There was an error while hydrating this Suspense boundary.',
     ]);
 
@@ -1162,7 +1162,7 @@ describe('ReactDOMServerPartialHydration', () => {
     });
 
     assertLog([
-      'Hydration failed because the server rendered HTML didn\'t match the client.',
+      "Hydration failed because the server rendered HTML didn't match the client.",
       'There was an error while hydrating this Suspense boundary.',
     ]);