diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 29fda74..3541a68 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ on:
 name: "CI"
 
 env:
-  COMPOSER_ROOT_VERSION: "6.1-dev"
+  COMPOSER_ROOT_VERSION: "6.1.x-dev"
 
 permissions:
   contents: read
diff --git a/composer.json b/composer.json
index 78c8b0b..5d5c72a 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,7 @@
         "sebastian/recursion-context": "^6.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^11.2"
+        "phpunit/phpunit": "^11.3"
     },
     "autoload": {
         "classmap": [
diff --git a/phpunit.xml b/phpunit.xml
index 911e767..377fe27 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -4,9 +4,12 @@
          bootstrap="vendor/autoload.php"
          cacheDirectory=".phpunit.cache"
          executionOrder="depends,defects"
+         shortenArraysForExportThreshold="10"
          requireCoverageMetadata="true"
          beStrictAboutCoverageMetadata="true"
          beStrictAboutOutputDuringTests="true"
+         displayDetailsOnPhpunitDeprecations="true"
+         failOnPhpunitDeprecation="true"
          failOnRisky="true"
          failOnWarning="true"
          colors="true">
@@ -16,7 +19,7 @@
         </testsuite>
     </testsuites>
 
-    <source>
+    <source ignoreIndirectDeprecations="true" restrictNotices="true" restrictWarnings="true">
         <include>
             <directory>src</directory>
         </include>