diff --git a/composer.json b/composer.json
index 9cf991e..6b50a35 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "require": {
         "php": ">=8.1.0",
         "guzzlehttp/guzzle": ">7.5",
-        "guzzlehttp/oauth-subscriber": "0.6.*"
+        "guzzlehttp/oauth-subscriber": "0.8.*"
     },
     "require-dev": {
         "phpunit/phpunit": ">9.0"
diff --git a/test/phpSmug/Tests/PsrComplianceTest.php b/test/phpSmug/Tests/PsrComplianceTest.php
deleted file mode 100644
index 42aefa8..0000000
--- a/test/phpSmug/Tests/PsrComplianceTest.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-
-namespace phpSmug\Tests;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Attributes\Test;
-
-/**
- * Test properties of our codebase rather than the actual code.
- */
-class PsrComplianceTest extends TestCase
-{
-    #[Test]
-    public function testPsrCompliance()
-    {
-        // If we can't find the command-line tool, we mark the test as skipped
-        // so it shows as a warning to the developer rather than passing silently.
-        if (!file_exists('vendor/bin/php-cs-fixer')) {
-            $this->markTestSkipped(
-                'Needs linter to check PSR compliance'
-            );
-        }
-
-        // Run linter in dry-run mode so it changes nothing.
-        exec(
-            escapeshellcmd('vendor/bin/php-cs-fixer fix --diff -v --dry-run --using-cache=no .').' 2>&1',
-            $output,
-            $return_var
-        );
-
-        /* If we've got output, pop the first row ("Fixed all files...") and shift
-           off the last three lines. */
-        if ($output) {
-            array_pop($output);
-            array_shift($output);
-            array_shift($output);
-            array_shift($output);
-        }
-
-        // Check shell return code: if nonzero, report the output as a failure.
-        $this->assertEquals(
-            0,
-            $return_var,
-            "PSR linter reported errors in: \n\t".implode("\n\t", $output)
-        );
-    }
-}