diff --git a/composer.json b/composer.json
index 7c1a6b23ffafc0ad30977affda366bcc3928dad5..74e08ea073936b7e535c106bd7374276fa74911e 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
         "shim"
     ],
     "homepage": "https://phpunit.de/",
-    "version": "7.5.20",
+    "version": "8.0.0",
     "license": [
         "BSD-3-Clause"
     ],
@@ -23,12 +23,13 @@
         "phpunit"
     ],
     "require": {
-        "php": "^7.1",
+        "php": "^7.2",
         "ext-dom": "*",
         "ext-json": "*",
         "ext-libxml": "*",
         "ext-mbstring": "*",
-        "ext-xml": "*"
+        "ext-xml": "*",
+        "ext-xmlwriter": "*"
     },
     "suggest": {
         "ext-soap": "*",
diff --git a/phpunit b/phpunit
index f8fe99db126aee6b3dc33d695ff14494ed542282..42fdf326164ffa443fe0d76b1b50977089318987 100755
Binary files a/phpunit and b/phpunit differ
diff --git a/phpunit.asc b/phpunit.asc
index a6a892fdf957165303510e37468d60c092ae4f95..c85dfd9e8137079d20675477098499610c986900 100644
Binary files a/phpunit.asc and b/phpunit.asc differ