diff --git a/src/network/mcpe/InventoryManager.php b/src/network/mcpe/InventoryManager.php
index cd09663f4..a6e33268b 100644
--- a/src/network/mcpe/InventoryManager.php
+++ b/src/network/mcpe/InventoryManager.php
@@ -45,6 +45,7 @@ use pocketmine\network\mcpe\protocol\types\inventory\ContainerIds;
 use pocketmine\network\mcpe\protocol\types\inventory\ItemStack;
 use pocketmine\network\mcpe\protocol\types\inventory\WindowTypes;
 use pocketmine\player\Player;
+use function array_map;
 use function array_search;
 use function max;
 
diff --git a/src/network/mcpe/convert/TypeConverter.php b/src/network/mcpe/convert/TypeConverter.php
index e0f257ea1..b3ecd9214 100644
--- a/src/network/mcpe/convert/TypeConverter.php
+++ b/src/network/mcpe/convert/TypeConverter.php
@@ -34,7 +34,6 @@ use pocketmine\item\ItemFactory;
 use pocketmine\item\ItemIds;
 use pocketmine\nbt\tag\CompoundTag;
 use pocketmine\nbt\tag\IntTag;
-use pocketmine\network\mcpe\protocol\InventoryTransactionPacket;
 use pocketmine\network\mcpe\protocol\types\inventory\ContainerIds;
 use pocketmine\network\mcpe\protocol\types\inventory\ItemStack;
 use pocketmine\network\mcpe\protocol\types\inventory\NetworkInventoryAction;
diff --git a/src/network/mcpe/encryption/EncryptionUtils.php b/src/network/mcpe/encryption/EncryptionUtils.php
index ad09457bb..38fe0e95a 100644
--- a/src/network/mcpe/encryption/EncryptionUtils.php
+++ b/src/network/mcpe/encryption/EncryptionUtils.php
@@ -29,6 +29,15 @@ use Mdanter\Ecc\Serializer\PrivateKey\DerPrivateKeySerializer;
 use Mdanter\Ecc\Serializer\PrivateKey\PemPrivateKeySerializer;
 use Mdanter\Ecc\Serializer\PublicKey\DerPublicKeySerializer;
 use Mdanter\Ecc\Serializer\Signature\DerSignatureSerializer;
+use function base64_encode;
+use function gmp_strval;
+use function hex2bin;
+use function json_encode;
+use function openssl_digest;
+use function openssl_sign;
+use function rtrim;
+use function str_pad;
+use function strtr;
 
 final class EncryptionUtils{
 
diff --git a/src/network/mcpe/encryption/PrepareEncryptionTask.php b/src/network/mcpe/encryption/PrepareEncryptionTask.php
index 65314b3b2..39bf8c043 100644
--- a/src/network/mcpe/encryption/PrepareEncryptionTask.php
+++ b/src/network/mcpe/encryption/PrepareEncryptionTask.php
@@ -26,23 +26,8 @@ namespace pocketmine\network\mcpe\encryption;
 use Mdanter\Ecc\Crypto\Key\PrivateKeyInterface;
 use Mdanter\Ecc\Crypto\Key\PublicKeyInterface;
 use Mdanter\Ecc\EccFactory;
-use Mdanter\Ecc\Serializer\PrivateKey\DerPrivateKeySerializer;
-use Mdanter\Ecc\Serializer\PrivateKey\PemPrivateKeySerializer;
-use Mdanter\Ecc\Serializer\PublicKey\DerPublicKeySerializer;
-use Mdanter\Ecc\Serializer\Signature\DerSignatureSerializer;
 use pocketmine\scheduler\AsyncTask;
-use function base64_encode;
-use function gmp_strval;
-use function hex2bin;
-use function json_encode;
-use function openssl_digest;
-use function openssl_sign;
 use function random_bytes;
-use function rtrim;
-use function str_pad;
-use function strtr;
-use const OPENSSL_ALGO_SHA384;
-use const STR_PAD_LEFT;
 
 class PrepareEncryptionTask extends AsyncTask{
 
diff --git a/src/network/mcpe/handler/ResourcePacksPacketHandler.php b/src/network/mcpe/handler/ResourcePacksPacketHandler.php
index 5a55231fd..2986e15a5 100644
--- a/src/network/mcpe/handler/ResourcePacksPacketHandler.php
+++ b/src/network/mcpe/handler/ResourcePacksPacketHandler.php
@@ -35,7 +35,6 @@ use pocketmine\network\mcpe\protocol\types\resourcepacks\ResourcePackStackEntry;
 use pocketmine\resourcepacks\ResourcePack;
 use pocketmine\resourcepacks\ResourcePackManager;
 use function array_map;
-use function array_unshift;
 use function ceil;
 use function count;
 use function implode;