diff --git a/src/data/bedrock/LegacyBlockIdToStringIdMap.php b/src/data/bedrock/LegacyBlockIdToStringIdMap.php
index d613da675..e46fefb9d 100644
--- a/src/data/bedrock/LegacyBlockIdToStringIdMap.php
+++ b/src/data/bedrock/LegacyBlockIdToStringIdMap.php
@@ -23,13 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\data\bedrock;
 
-use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\SingletonTrait;
-use function file_get_contents;
-use function is_array;
-use function is_int;
-use function is_string;
-use function json_decode;
 
 final class LegacyBlockIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
diff --git a/src/data/bedrock/LegacyEntityIdToStringIdMap.php b/src/data/bedrock/LegacyEntityIdToStringIdMap.php
index 9457e7009..b12cc8bce 100644
--- a/src/data/bedrock/LegacyEntityIdToStringIdMap.php
+++ b/src/data/bedrock/LegacyEntityIdToStringIdMap.php
@@ -23,13 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\data\bedrock;
 
-use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\SingletonTrait;
-use function file_get_contents;
-use function is_array;
-use function is_int;
-use function is_string;
-use function json_decode;
 
 final class LegacyEntityIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
diff --git a/src/data/bedrock/LegacyItemIdToStringIdMap.php b/src/data/bedrock/LegacyItemIdToStringIdMap.php
index 03efcc161..93219a549 100644
--- a/src/data/bedrock/LegacyItemIdToStringIdMap.php
+++ b/src/data/bedrock/LegacyItemIdToStringIdMap.php
@@ -23,13 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\data\bedrock;
 
-use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\SingletonTrait;
-use function file_get_contents;
-use function is_array;
-use function is_int;
-use function is_string;
-use function json_decode;
 
 final class LegacyItemIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
diff --git a/src/data/bedrock/LegacyToStringBidirectionalIdMap.php b/src/data/bedrock/LegacyToStringBidirectionalIdMap.php
index 9afb0dc57..0dcc7ff0f 100644
--- a/src/data/bedrock/LegacyToStringBidirectionalIdMap.php
+++ b/src/data/bedrock/LegacyToStringBidirectionalIdMap.php
@@ -24,6 +24,11 @@ declare(strict_types=1);
 namespace pocketmine\data\bedrock;
 
 use pocketmine\utils\AssumptionFailedError;
+use function file_get_contents;
+use function is_array;
+use function is_int;
+use function is_string;
+use function json_decode;
 
 abstract class LegacyToStringBidirectionalIdMap{
 
diff --git a/src/network/mcpe/JwtUtils.php b/src/network/mcpe/JwtUtils.php
index 503ca2a51..0e5a81b0a 100644
--- a/src/network/mcpe/JwtUtils.php
+++ b/src/network/mcpe/JwtUtils.php
@@ -23,6 +23,18 @@ declare(strict_types=1);
 
 namespace pocketmine\network\mcpe;
 
+use function base64_decode;
+use function base64_encode;
+use function count;
+use function explode;
+use function is_array;
+use function json_decode;
+use function json_last_error_msg;
+use function rtrim;
+use function str_repeat;
+use function strlen;
+use function strtr;
+
 final class JwtUtils{
 
 	/**
diff --git a/src/network/mcpe/auth/ProcessLoginTask.php b/src/network/mcpe/auth/ProcessLoginTask.php
index 3fcc730a1..c997b48d7 100644
--- a/src/network/mcpe/auth/ProcessLoginTask.php
+++ b/src/network/mcpe/auth/ProcessLoginTask.php
@@ -38,10 +38,8 @@ use function explode;
 use function gmp_init;
 use function json_decode;
 use function openssl_verify;
-use function str_repeat;
 use function str_split;
 use function strlen;
-use function strtr;
 use function time;
 use const OPENSSL_ALGO_SHA384;
 
diff --git a/src/utils/Utils.php b/src/utils/Utils.php
index e858cbc94..17d4b495d 100644
--- a/src/utils/Utils.php
+++ b/src/utils/Utils.php
@@ -33,7 +33,6 @@ use function array_combine;
 use function array_map;
 use function array_reverse;
 use function array_values;
-use function base64_decode;
 use function bin2hex;
 use function chunk_split;
 use function count;
@@ -53,8 +52,6 @@ use function implode;
 use function is_array;
 use function is_object;
 use function is_string;
-use function json_decode;
-use function json_last_error_msg;
 use function mb_check_encoding;
 use function ob_end_clean;
 use function ob_get_contents;
@@ -71,7 +68,6 @@ use function str_split;
 use function stripos;
 use function strlen;
 use function strpos;
-use function strtr;
 use function substr;
 use function sys_get_temp_dir;
 use function trim;