diff --git a/Tests/ProcessTest.php b/Tests/ProcessTest.php
index d7461d08..0f4d15f2 100644
--- a/Tests/ProcessTest.php
+++ b/Tests/ProcessTest.php
@@ -988,21 +988,20 @@ public function provideMethodsThatNeedATerminatedProcess()
 
     public function testWrongSignal()
     {
-        $this->expectException('Symfony\Component\Process\Exception\RuntimeException');
         if ('\\' === \DIRECTORY_SEPARATOR) {
             $this->markTestSkipped('POSIX signals do not work on Windows');
         }
 
+        $this->expectException(RuntimeException::class);
+
         $process = $this->getProcessForCode('sleep(38);');
         $process->start();
         try {
             $process->signal(-4);
             $this->fail('A RuntimeException must have been thrown');
-        } catch (RuntimeException $e) {
+        } finally {
             $process->stop(0);
         }
-
-        throw $e;
     }
 
     public function testDisableOutputDisablesTheOutput()
diff --git a/composer.json b/composer.json
index fa703a0b..1957e568 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^7.2.5",
+        "php": ">=7.2.5",
         "symfony/polyfill-php80": "^1.15"
     },
     "autoload": {