diff --git a/src/Controller/Security.php b/src/Controller/Security.php
index 4c9ec655b5..eed9869179 100644
--- a/src/Controller/Security.php
+++ b/src/Controller/Security.php
@@ -81,6 +81,11 @@ class Security extends Controller
      * @param Authenticator $authenticator
      *
      * @return null|array|Response
+     * @throws EmailTakenException
+     * @throws NicknameTakenException
+     * @throws ServerException
+     * @throws DuplicateFoundException
+     * @throws EmailTakenException
      * @throws NicknameEmptyException
      * @throws NicknameInvalidException
      * @throws NicknameNotAllowedException
diff --git a/src/Core/DB/DB.php b/src/Core/DB/DB.php
index 813cf2492c..df99bd2925 100644
--- a/src/Core/DB/DB.php
+++ b/src/Core/DB/DB.php
@@ -221,7 +221,7 @@ class DB
         $metadata = self::getClassMetadata(\get_class($owner));
         $seqName  = $metadata->getSequenceName($conn->getDatabasePlatform());
         self::persist($owner);
-        $id = (int ) $conn->lastInsertId($seqName);
+        $id = (int) $conn->lastInsertId($seqName);
         F\map(\is_array($others) ? $others : [$others], function ($o) use ($id) { $o->setId($id); self::persist($o); });
         if (!\is_null($extra)) {
             $extra($id);
diff --git a/src/DependencyInjection/Compiler/SchemaDefDriver.php b/src/DependencyInjection/Compiler/SchemaDefDriver.php
index c3aaccaf95..e27b192aa6 100644
--- a/src/DependencyInjection/Compiler/SchemaDefDriver.php
+++ b/src/DependencyInjection/Compiler/SchemaDefDriver.php
@@ -34,6 +34,7 @@ declare(strict_types = 1);
 namespace App\DependencyInjection\Compiler;
 
 use Doctrine\ORM\Mapping\ClassMetadataInfo;
+use Doctrine\Persistence\Mapping\ClassMetadata;
 use Doctrine\Persistence\Mapping\Driver\StaticPHPDriver;
 use Exception;
 use Functional as F;
@@ -91,11 +92,9 @@ class SchemaDefDriver extends StaticPHPDriver implements CompilerPassInterface
 
     /**
      * Fill in the database $metadata for $class_name
-     *
-     * @param string            $class_name
-     * @param ClassMetadataInfo $metadata
+     * @param ClassMetadataInfo $metadata ClassMetadataInfo is the real type, but we need to override the method
      */
-    public function loadMetadataForClass($class_name, $metadata)
+    public function loadMetadataForClass($class_name, ClassMetadata $metadata)
     {
         $schema = $class_name::schemaDef();
 
@@ -211,12 +210,8 @@ class SchemaDefDriver extends StaticPHPDriver implements CompilerPassInterface
      * Override StaticPHPDriver's method,
      * we care about classes that have the method `schemaDef`,
      * instead of `loadMetadata`.
-     *
-     * @param string $class_name
-     *
-     * @return bool
      */
-    public function isTransient($class_name)
+    public function isTransient($class_name): bool
     {
         return !method_exists($class_name, 'schemaDef');
     }
diff --git a/src/Util/Form/ActorArrayTransformer.php b/src/Util/Form/ActorArrayTransformer.php
index 62cd864b71..d7cea71e7b 100644
--- a/src/Util/Form/ActorArrayTransformer.php
+++ b/src/Util/Form/ActorArrayTransformer.php
@@ -40,27 +40,19 @@ class ActorArrayTransformer extends ArrayTransformer
 {
     /**
      * Transforms array of Actors into string of nicknames
-     *
-     * @param array $a
-     *
-     * @return string
      */
     public function transform($a)
     {
         return parent::transform(
             array_map(
-            fn ($actor) => $actor->getNickname(),
-            $a,
-        ),
+                fn ($actor) => $actor->getNickname(),
+                $a,
+            ),
         );
     }
 
     /**
      * Transforms string of nicknames into Actors
-     *
-     * @param string $s
-     *
-     * @return array
      */
     public function reverseTransform($s)
     {
diff --git a/src/Util/Form/ArrayTransformer.php b/src/Util/Form/ArrayTransformer.php
index 19a1581142..97b99c4250 100644
--- a/src/Util/Form/ArrayTransformer.php
+++ b/src/Util/Form/ArrayTransformer.php
@@ -40,11 +40,6 @@ class ArrayTransformer implements DataTransformerInterface
 {
     // Can't use type annotations, to conform to interface
 
-    /**
-     * @param array $a
-     *
-     * @return string
-     */
     public function transform($a)
     {
         if (!\is_array($a)) {
@@ -53,11 +48,6 @@ class ArrayTransformer implements DataTransformerInterface
         return Formatting::toString($a, Formatting::SPLIT_BY_SPACE);
     }
 
-    /**
-     * @param string $s
-     *
-     * @return array
-     */
     public function reverseTransform($s)
     {
         if (empty($s)) {