diff --git a/composer.json b/composer.json
index 32f9022c..a2c0b0ce 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "require": {
         "php": "^8.1.0",
         "brianium/paratest": "^7.2.0",
-        "nunomaduro/collision": "^7.5.2",
+        "nunomaduro/collision": "^7.6.0",
         "nunomaduro/termwind": "^1.15.1",
         "pestphp/pest-plugin": "^2.0.1",
         "pestphp/pest-plugin-arch": "^2.2.0",
diff --git a/src/Plugins/Parallel/Paratest/ResultPrinter.php b/src/Plugins/Parallel/Paratest/ResultPrinter.php
index 4602ee31..f9d96ca2 100644
--- a/src/Plugins/Parallel/Paratest/ResultPrinter.php
+++ b/src/Plugins/Parallel/Paratest/ResultPrinter.php
@@ -121,8 +121,7 @@ final class ResultPrinter
 
         $unexpectedOutput = $this->tail($outputFile);
         if ($unexpectedOutput !== '') {
-            // if unexpected output only contains the letter "T", like "T", or "TT", or "TTT", etc, then ignore it.
-            if (preg_match('/^T+$/', $unexpectedOutput) !== false) {
+            if (preg_match('/^T+$/', $unexpectedOutput) > 0) {
                 return;
             }
 
diff --git a/tests/.snapshots/success.txt b/tests/.snapshots/success.txt
index 4a22473a..0fda7cb9 100644
--- a/tests/.snapshots/success.txt
+++ b/tests/.snapshots/success.txt
@@ -808,6 +808,9 @@
    PASS  Tests\Fixtures\ExampleTest
   ✓ it example 2
 
+   WARN  Tests\Fixtures\UnexpectedOutput
+  - output
+
    PASS  Tests\Helpers\TestInHelpers
   ✓ it executes tests in the Helpers directory
 
@@ -1035,7 +1038,11 @@
   ✓ todo
   ✓ todo in parallel
 
+   PASS  Tests\Visual\UnexpectedOutput
+  ✓ unexpected output with ([''])
+  ✓ unexpected output with (['--parallel'])
+
    PASS  Tests\Visual\Version
   ✓ visual snapshot of help command output
 
-  Tests:    2 deprecated, 3 warnings, 4 incomplete, 1 notice, 8 todos, 17 skipped, 716 passed (1733 assertions)
\ No newline at end of file
+  Tests:    2 deprecated, 3 warnings, 4 incomplete, 1 notice, 8 todos, 18 skipped, 718 passed (1735 assertions)
\ No newline at end of file
diff --git a/tests/.snapshots/unexpected-output-parallel.txt b/tests/.snapshots/unexpected-output-parallel.txt
new file mode 100644
index 00000000..1c8ccd25
--- /dev/null
+++ b/tests/.snapshots/unexpected-output-parallel.txt
@@ -0,0 +1,23 @@
+
+  .this is unexpected output!
+  ────────────────────────────────────────────────────────────────────────────  
+   RISKY  Tests\Fixtures\UnexpectedOutput > output                              
+  This test printed output: this is unexpected output
+
+  at src/Support/StateGenerator.php:58
+     54▕             foreach ($riskyEvents as $riskyEvent) {
+     55▕                 $state->add(TestResult::fromPestParallelTestCase(
+     56▕                     $riskyEvent->test(),
+     57▕                     TestResult::RISKY,
+  ➜  58▕                     ThrowableBuilder::from(new TestOutcome($riskyEvent->message()))
+     59▕                 ));
+     60▕             }
+     61▕         }
+     62▕
+
+  1   src/Support/StateGenerator.php:58
+      +5 vendor frames 
+  7   src/Plugins/Actions/CallsHandleArguments.php:29
+
+
+  Tests:    1 risky, 1 passed (2 assertions)
\ No newline at end of file
diff --git a/tests/.snapshots/unexpected-output.txt b/tests/.snapshots/unexpected-output.txt
new file mode 100644
index 00000000..29529993
--- /dev/null
+++ b/tests/.snapshots/unexpected-output.txt
@@ -0,0 +1,20 @@
+this is unexpected output
+   WARN  Tests\Fixtures\UnexpectedOutput
+  ! output → This test printed output: this is unexpected output
+  ────────────────────────────────────────────────────────────────────────────  
+   RISKY  Tests\Fixtures\UnexpectedOutput > output                              
+  This test printed output: this is unexpected output
+
+  at src/Kernel.php:86
+     82▕     {
+     83▕         $args = CallsHandleArguments::execute($args);
+     84▕ 
+     85▕         try {
+  ➜  86▕             $this->application->run($args);
+     87▕         } catch (NoDirtyTestsFound) {
+     88▕             $this->output->writeln([
+     89▕                 '',
+     90▕                 '   INFO  No tests found.',
+
+
+  Tests:    1 risky (1 assertions)
\ No newline at end of file
diff --git a/tests/Fixtures/UnexpectedOutput.php b/tests/Fixtures/UnexpectedOutput.php
new file mode 100644
index 00000000..170d17d7
--- /dev/null
+++ b/tests/Fixtures/UnexpectedOutput.php
@@ -0,0 +1,7 @@
+<?php
+
+test('output', function () {
+    echo 'this is unexpected output';
+
+    expect(true)->toBeTrue();
+})->skip(! isset($_SERVER['COLLISION_TEST']));
diff --git a/tests/Visual/Parallel.php b/tests/Visual/Parallel.php
index a67437b2..6d7cc11e 100644
--- a/tests/Visual/Parallel.php
+++ b/tests/Visual/Parallel.php
@@ -18,7 +18,7 @@ $run = function () {
 
 test('parallel', function () use ($run) {
     expect($run('--exclude-group=integration'))
-        ->toContain('Tests:    1 deprecated, 3 warnings, 4 incomplete, 1 notice, 8 todos, 14 skipped, 705 passed (1718 assertions)')
+        ->toContain('Tests:    1 deprecated, 3 warnings, 4 incomplete, 1 notice, 8 todos, 15 skipped, 705 passed (1718 assertions)')
         ->toContain('Parallel: 3 processes');
 })->skipOnWindows();
 
diff --git a/tests/Visual/UnexpectedOutput.php b/tests/Visual/UnexpectedOutput.php
new file mode 100644
index 00000000..323ae0f5
--- /dev/null
+++ b/tests/Visual/UnexpectedOutput.php
@@ -0,0 +1,43 @@
+<?php
+
+test('unexpected output', function (array $arguments) {
+    $snapshot = __DIR__.'/../.snapshots/unexpected-output.txt';
+
+    if (in_array('--parallel', $arguments)) {
+        $snapshot = __DIR__.'/../.snapshots/unexpected-output-parallel.txt';
+    }
+
+    $output = function () use ($arguments) {
+        $process = (new Symfony\Component\Process\Process(
+            array_merge(['php', 'bin/pest', 'tests/Fixtures/UnexpectedOutput.php'], $arguments),
+            null,
+            ['COLLISION_PRINTER' => 'DefaultPrinter', 'COLLISION_IGNORE_DURATION' => 'true', 'COLLISION_TEST' => true]
+        ));
+
+        $process->run();
+
+        return preg_replace('#\\x1b[[][^A-Za-z]*[A-Za-z]#', '', $process->getOutput());
+    };
+
+    if (getenv('REBUILD_SNAPSHOTS')) {
+        $outputContent = explode("\n", $output());
+        array_pop($outputContent);
+        array_pop($outputContent);
+        array_pop($outputContent);
+
+        if (in_array('--parallel', $arguments)) {
+            array_pop($outputContent);
+            array_pop($outputContent);
+        }
+
+        file_put_contents($snapshot, implode("\n", $outputContent));
+
+        $this->markTestSkipped('Snapshot rebuilt.');
+    }
+
+    expect($output())
+        ->toContain(file_get_contents($snapshot));
+})->with([
+    [['']],
+    [['--parallel']],
+])->skipOnWindows();