diff --git a/ChangeLog-8.5.md b/ChangeLog-8.5.md
index 02c976f717c..eb1ec28b697 100644
--- a/ChangeLog-8.5.md
+++ b/ChangeLog-8.5.md
@@ -2,6 +2,12 @@
 
 All notable changes of the PHPUnit 8.5 release series are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
 
+## [8.5.13] - 2020-12-01
+
+### Fixed
+
+* Running tests in isolated processes did not work with PHP 8 on Windows
+
 ## [8.5.12] - 2020-11-30
 
 ### Changed
@@ -110,6 +116,7 @@ All notable changes of the PHPUnit 8.5 release series are documented in this fil
 * [#3967](https://github.com/sebastianbergmann/phpunit/issues/3967): Cannot double interface that extends interface that extends `\Throwable`
 * [#3968](https://github.com/sebastianbergmann/phpunit/pull/3968): Test class run in a separate PHP process are passing when `exit` called inside
 
+[8.5.13]: https://github.com/sebastianbergmann/phpunit/compare/8.5.12...8.5.13
 [8.5.12]: https://github.com/sebastianbergmann/phpunit/compare/8.5.11...8.5.12
 [8.5.11]: https://github.com/sebastianbergmann/phpunit/compare/8.5.10...8.5.11
 [8.5.10]: https://github.com/sebastianbergmann/phpunit/compare/8.5.9...8.5.10
diff --git a/src/Runner/Version.php b/src/Runner/Version.php
index fc170fede55..cff48c22658 100644
--- a/src/Runner/Version.php
+++ b/src/Runner/Version.php
@@ -33,7 +33,7 @@ public static function id(): string
         }
 
         if (self::$version === '') {
-            self::$version = (new VersionId('8.5.12', \dirname(__DIR__, 2)))->getVersion();
+            self::$version = (new VersionId('8.5.13', \dirname(__DIR__, 2)))->getVersion();
         }
 
         return self::$version;