diff --git a/phpstan-baseline.php b/phpstan-baseline.php
index 8612560f9..53ff869cc 100644
--- a/phpstan-baseline.php
+++ b/phpstan-baseline.php
@@ -427,18 +427,6 @@
 	'count' => 1,
 	'path' => __DIR__ . '/tests/Authentication/Authenticators/SessionAuthenticatorTest.php',
 ];
-$ignoreErrors[] = [
-	'rawMessage' => 'Parameter #1 $headers of method Tests\\Authentication\\Filters\\AbstractFilterTestCase::withHeaders() expects array<string, CodeIgniter\\HTTP\\Header|list<CodeIgniter\\HTTP\\Header>>, array{Authorization: non-falsy-string} given.',
-	'identifier' => 'argument.type',
-	'count' => 7,
-	'path' => __DIR__ . '/tests/Authentication/Filters/HmacFilterTest.php',
-];
-$ignoreErrors[] = [
-	'rawMessage' => 'Parameter #1 $headers of method Tests\\Authentication\\Filters\\JWTFilterTest::withHeaders() expects array<string, CodeIgniter\\HTTP\\Header|list<CodeIgniter\\HTTP\\Header>>, array{Authorization: non-falsy-string} given.',
-	'identifier' => 'argument.type',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/Authentication/Filters/JWTFilterTest.php',
-];
 $ignoreErrors[] = [
 	'rawMessage' => 'Implicit array creation is not allowed - variable $users might not exist.',
 	'identifier' => 'variable.implicitArray',
diff --git a/src/Authentication/Authenticators/JWT.php b/src/Authentication/Authenticators/JWT.php
index 61deddb20..2a4c2e721 100644
--- a/src/Authentication/Authenticators/JWT.php
+++ b/src/Authentication/Authenticators/JWT.php
@@ -221,9 +221,7 @@ public function getTokenFromRequest(RequestInterface $request): string
         /** @var AuthJWT $config */
         $config = config('AuthJWT');
 
-        $tokenHeader = $request->getHeaderLine(
-            $config->authenticatorHeader ?? 'Authorization',
-        );
+        $tokenHeader = $request->getHeaderLine($config->authenticatorHeader);
 
         if (str_starts_with($tokenHeader, 'Bearer')) {
             return trim(substr($tokenHeader, 6));
diff --git a/src/Authentication/Authenticators/Session.php b/src/Authentication/Authenticators/Session.php
index 6897854b7..2b800c2a5 100644
--- a/src/Authentication/Authenticators/Session.php
+++ b/src/Authentication/Authenticators/Session.php
@@ -280,7 +280,7 @@ private function recordLoginAttempt(
         // Determine the type of ID we're using.
         // Standard fields would be email, username,
         // but any column within config('Auth')->validFields can be used.
-        $field = array_intersect(config('Auth')->validFields ?? [], array_keys($credentials));
+        $field = array_intersect(config('Auth')->validFields, array_keys($credentials));
 
         if (count($field) !== 1) {
             throw new InvalidArgumentException('Invalid credentials passed to recordLoginAttempt.');