diff --git a/.ci/phpstan.neon b/.ci/phpstan.neon
index 856e2a9abf..34b8841ce3 100644
--- a/.ci/phpstan.neon
+++ b/.ci/phpstan.neon
@@ -16,6 +16,8 @@ parameters:
     - '#Dynamic call to static method#' # all the Laravel ORM things depend on this.
     - identifier: varTag.nativeType
     - identifier: varTag.type
+    - identifier: missingType.iterableValue # not interesting enough to fix.
+    - identifier: missingType.generics # not interesting enough to fix.
 
     # phpstan can't handle this so we ignore them.
     - '#Call to an undefined method Illuminate\\Database\\Eloquent\\Relations\\HasMany::before#'
@@ -69,5 +71,5 @@ parameters:
 
   # The level 8 is the highest level. original was 5
   # 7 is more than enough, higher just leaves NULL things.
-  level: 5
+  level: 6
 
diff --git a/app/Notifications/User/UserRegistration.php b/app/Notifications/User/UserRegistration.php
index bcc8947993..9ab267fef1 100644
--- a/app/Notifications/User/UserRegistration.php
+++ b/app/Notifications/User/UserRegistration.php
@@ -41,7 +41,7 @@ class UserRegistration extends Notification
     /**
      * @SuppressWarnings("PHPMD.UnusedFormalParameter")
      */
-    public function toArray(User $notifiable)
+    public function toArray(User $notifiable): array
     {
         return [
         ];
@@ -50,7 +50,7 @@ class UserRegistration extends Notification
     /**
      * @SuppressWarnings("PHPMD.UnusedFormalParameter")
      */
-    public function toMail(User $notifiable)
+    public function toMail(User $notifiable): MailMessage
     {
         return (new MailMessage())
             ->markdown('emails.registered', ['address' => route('index')])
@@ -61,7 +61,7 @@ class UserRegistration extends Notification
     /**
      * @SuppressWarnings("PHPMD.UnusedFormalParameter")
      */
-    public function via(User $notifiable)
+    public function via(User $notifiable): array
     {
         // other settings will not be available at this point anyway.
         return ['mail'];
diff --git a/app/Support/FireflyConfig.php b/app/Support/FireflyConfig.php
index e44549dbd7..a9e182b519 100644
--- a/app/Support/FireflyConfig.php
+++ b/app/Support/FireflyConfig.php
@@ -49,7 +49,7 @@ class FireflyConfig
         return 1 === Configuration::where('name', $name)->count();
     }
 
-    public function getEncrypted(string $name, $default = null): ?Configuration
+    public function getEncrypted(string $name, mixed $default = null): ?Configuration
     {
         $result = $this->get($name, $default);
         if (null === $result) {
@@ -77,7 +77,7 @@ class FireflyConfig
      *
      * @throws FireflyException
      */
-    public function get(string $name, $default = null): ?Configuration
+    public function get(string $name, mixed $default = null): ?Configuration
     {
         $fullName = 'ff-config-'.$name;
         if (\Cache::has($fullName)) {
@@ -133,10 +133,7 @@ class FireflyConfig
         return $config;
     }
 
-    /**
-     * @param mixed $default
-     */
-    public function getFresh(string $name, $default = null): ?Configuration
+    public function getFresh(string $name, mixed $default = null): ?Configuration
     {
         $config = Configuration::where('name', $name)->first(['id', 'name', 'data']);
         if (null !== $config) {
diff --git a/app/Support/Form/FormSupport.php b/app/Support/Form/FormSupport.php
index 62978ac598..06d50030ff 100644
--- a/app/Support/Form/FormSupport.php
+++ b/app/Support/Form/FormSupport.php
@@ -34,7 +34,7 @@ use Illuminate\Support\MessageBag;
  */
 trait FormSupport
 {
-    public function multiSelect(string $name, ?array $list = null, $selected = null, ?array $options = null): string
+    public function multiSelect(string $name, ?array $list = null, mixed $selected = null, ?array $options = null): string
     {
         $list ??= [];
         $label    = $this->label($name, $options);