diff --git a/ChangeLog-10.1.md b/ChangeLog-10.1.md
index 37eb1b9dee1..c29c164578f 100644
--- a/ChangeLog-10.1.md
+++ b/ChangeLog-10.1.md
@@ -35,6 +35,7 @@ All notable changes of the PHPUnit 10.1 release series are documented in this fi
 * [#5307](https://github.com/sebastianbergmann/phpunit/issues/5307): Deprecate `MockBuilder::enableProxyingToOriginalMethods()`, `MockBuilder::disableProxyingToOriginalMethods()`, and `MockBuilder::setProxyTarget()` (these methods only have a `@deprecated` annotation for now; using these methods will trigger a deprecation warning in PHPUnit 11; these methods will be removed in PHPUnit 12)
 * [#5308](https://github.com/sebastianbergmann/phpunit/issues/5308): Deprecate `MockBuilder::allowMockingUnknownTypes()` and `MockBuilder::disallowMockingUnknownTypes()` (these methods only have a `@deprecated` annotation for now; using these methods will trigger a deprecation warning in PHPUnit 11; these methods will be removed in PHPUnit 12)
 * [#5315](https://github.com/sebastianbergmann/phpunit/issues/5315): Deprecate `MockBuilder::enableArgumentCloning()` and `MockBuilder::disableArgumentCloning()` (these methods only have a `@deprecated` annotation for now; using these methods will trigger a deprecation warning in PHPUnit 11; these methods will be removed in PHPUnit 12)
+* [#5320](https://github.com/sebastianbergmann/phpunit/issues/5320): Deprecate `MockBuilder::addMethods()` (this method only has a `@deprecated` annotation for now; using this method will trigger a deprecation warning in PHPUnit 11; this method will be removed in PHPUnit 12)
 * Using `<coverage><include>...</include><exclude>...</exclude></coverage>` in the XML configuration file to configure code that should be included in code coverage reporting is now deprecated and support for this will be removed in PHPUnit 11 (use `<source><include>...</include><exclude>...</exclude></source>` instead)
 * `PHPUnit\TextUI\Configuration\Configuration::hasNonEmptyListOfFilesToBeIncludedInCodeCoverageReport()` (use `hasNonEmptyListOfSourceFiles()` instead)
 * `PHPUnit\TextUI\Configuration\Configuration::coverageIncludeDirectories()` (use `sourceIncludeDirectories()` instead)
diff --git a/src/Framework/MockObject/MockBuilder.php b/src/Framework/MockObject/MockBuilder.php
index 2166ca30bda..29d6211b06d 100644
--- a/src/Framework/MockObject/MockBuilder.php
+++ b/src/Framework/MockObject/MockBuilder.php
@@ -194,6 +194,8 @@ public function onlyMethods(array $methods): self
      * @throws RuntimeException
      *
      * @return $this
+     *
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5320
      */
     public function addMethods(array $methods): self
     {