diff --git a/testing/web-platform/meta/MANIFEST.json b/testing/web-platform/meta/MANIFEST.json
index 7ad2d8455596..691b8e8ff1f2 100644
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -603737,7 +603737,7 @@
    "support"
   ],
   "picture-in-picture/disable-picture-in-picture.html": [
-   "f80cdccd1c6edcf6a859a1ae2315a9f65188d812",
+   "3da36cdc69fef19a84da9d27b688b12d43179688",
    "testharness"
   ],
   "picture-in-picture/enter-picture-in-picture.html": [
@@ -603765,7 +603765,7 @@
    "testharness"
   ],
   "picture-in-picture/request-picture-in-picture-twice.html": [
-   "c45cc223ec4336916d46c3d4db8bc4decbbd3332",
+   "b678b793cd36252dd3b76709e9ff4ab0535e8931",
    "testharness"
   ],
   "picture-in-picture/request-picture-in-picture.html": [
@@ -603773,7 +603773,7 @@
    "testharness"
   ],
   "picture-in-picture/resources/picture-in-picture-helpers.js": [
-   "b41a3c97a777a69ab28eea3b33f464379303da3d",
+   "ccc8105dfe2ace32ed87e05b69c2a09bbc839724",
    "support"
   ],
   "picture-in-picture/shadow-dom.html": [
diff --git a/testing/web-platform/tests/picture-in-picture/disable-picture-in-picture.html b/testing/web-platform/tests/picture-in-picture/disable-picture-in-picture.html
index fdd8e9798e07..efde31bc3a30 100644
--- a/testing/web-platform/tests/picture-in-picture/disable-picture-in-picture.html
+++ b/testing/web-platform/tests/picture-in-picture/disable-picture-in-picture.html
@@ -33,7 +33,7 @@ promise_test(async t => {
 
 promise_test(async t => {
   const video = await loadVideo();
-  return test_driver.bless('request picture in picture', async () => {
+  return test_driver.bless('request Picture-in-Picture', async () => {
     const promise = video.requestPictureInPicture();
     video.disablePictureInPicture = true;
     await promise_rejects(t, 'InvalidStateError', promise);
diff --git a/testing/web-platform/tests/picture-in-picture/request-picture-in-picture-twice.html b/testing/web-platform/tests/picture-in-picture/request-picture-in-picture-twice.html
index 556cf83b83eb..0924ad21a4f5 100644
--- a/testing/web-platform/tests/picture-in-picture/request-picture-in-picture-twice.html
+++ b/testing/web-platform/tests/picture-in-picture/request-picture-in-picture-twice.html
@@ -11,9 +11,9 @@ promise_test(async t => {
   const video1 = await loadVideo();
   const video2 = await loadVideo();
   return test_driver.bless(
-    'request picture in picture',
+    'request Picture-in-Picture',
     async () => {
-      await video1.requestPictureInPicture();
+      video1.requestPictureInPicture();
       promise_rejects(t, 'NotAllowedError', video2.requestPictureInPicture());
     }
   );
diff --git a/testing/web-platform/tests/picture-in-picture/resources/picture-in-picture-helpers.js b/testing/web-platform/tests/picture-in-picture/resources/picture-in-picture-helpers.js
index 86b9f29ebd7c..55eed5393d62 100644
--- a/testing/web-platform/tests/picture-in-picture/resources/picture-in-picture-helpers.js
+++ b/testing/web-platform/tests/picture-in-picture/resources/picture-in-picture-helpers.js
@@ -17,6 +17,6 @@ function loadVideo(activeDocument, sourceUrl) {
 // Calls requestPictureInPicture() in a context that's 'allowed to request PiP'.
 function requestPictureInPictureWithTrustedClick(videoElement) {
   return test_driver.bless(
-    'request picture in picture',
+    'request Picture-in-Picture',
     () => videoElement.requestPictureInPicture());
 }