diff --git a/RELEASE-NOTES-1.35 b/RELEASE-NOTES-1.35
index 32077fc4ab9..fd43f4be69b 100644
--- a/RELEASE-NOTES-1.35
+++ b/RELEASE-NOTES-1.35
@@ -716,7 +716,7 @@ because of Phabricator reports.
 * ApiTestCase::doLogin, soft deprecated in 1.31, was hard deprecated.
 * WebRequest::getLimitOffset is hard deprecated. Instead, use
   ::getLimitOffsetForUser and pass a User object.
-* PageArchive::getPreviousRevision is soft deprecated. Instead, use the new
+* PageArchive::getPreviousRevision is hard deprecated. Instead, use the new
   ::getPreviousRevisionRecord method.
 * PageArchive::getArchivedRevision is hard deprecated. Instead, use the new
   ::getArchivedRevisionRecord method.
diff --git a/includes/page/PageArchive.php b/includes/page/PageArchive.php
index 6c050686eb3..8b1c4cf2d40 100644
--- a/includes/page/PageArchive.php
+++ b/includes/page/PageArchive.php
@@ -325,6 +325,8 @@ class PageArchive {
 	 * @return Revision|null Null when there is no previous revision
 	 */
 	public function getPreviousRevision( $timestamp ) {
+		wfDeprecated( __METHOD__, '1.35' );
+
 		$revRecord = $this->getPreviousRevisionRecord( $timestamp );
 		$rev = $revRecord ? new Revision( $revRecord ) : null;
 		return $rev;
diff --git a/tests/phpunit/includes/page/PageArchiveTest.php b/tests/phpunit/includes/page/PageArchiveTest.php
index d7bc055a0f3..cc4639d3bc5 100644
--- a/tests/phpunit/includes/page/PageArchiveTest.php
+++ b/tests/phpunit/includes/page/PageArchiveTest.php
@@ -343,6 +343,8 @@ class PageArchiveTest extends MediaWikiTestCase {
 	 * @covers PageArchive::getPreviousRevision
 	 */
 	public function testGetPreviousRevision() {
+		$this->hideDeprecated( 'PageArchive::getPreviousRevision' );
+
 		$rev = $this->archivedPage->getPreviousRevision( $this->ipRev->getTimestamp() );
 		$this->assertNotNull( $rev );
 		$this->assertSame( $this->firstRev->getId(), $rev->getId() );