diff --git a/src/data/bedrock/CoralTypeIdMap.php b/src/data/bedrock/CoralTypeIdMap.php
index 98f820cca..413b373ba 100644
--- a/src/data/bedrock/CoralTypeIdMap.php
+++ b/src/data/bedrock/CoralTypeIdMap.php
@@ -35,12 +35,12 @@ final class CoralTypeIdMap{
 	 * @var CoralType[]
 	 * @phpstan-var array<int, CoralType>
 	 */
-	private $idToEnum = [];
+	private array $idToEnum = [];
 	/**
 	 * @var int[]
 	 * @phpstan-var array<int, int>
 	 */
-	private $enumToId = [];
+	private array $enumToId = [];
 
 	public function __construct(){
 		$this->register(BlockLegacyMetadata::CORAL_VARIANT_TUBE, CoralType::TUBE());
diff --git a/src/data/bedrock/DyeColorIdMap.php b/src/data/bedrock/DyeColorIdMap.php
index cb7455b81..9b59de009 100644
--- a/src/data/bedrock/DyeColorIdMap.php
+++ b/src/data/bedrock/DyeColorIdMap.php
@@ -33,13 +33,13 @@ final class DyeColorIdMap{
 	 * @var DyeColor[]
 	 * @phpstan-var array<int, DyeColor>
 	 */
-	private $idToEnum = [];
+	private array $idToEnum = [];
 
 	/**
 	 * @var int[]
 	 * @phpstan-var array<int, int>
 	 */
-	private $enumToId = [];
+	private array $enumToId = [];
 
 	private function __construct(){
 		$this->register(0, DyeColor::WHITE());
diff --git a/src/data/bedrock/EffectIdMap.php b/src/data/bedrock/EffectIdMap.php
index f5257fe0d..f692a997f 100644
--- a/src/data/bedrock/EffectIdMap.php
+++ b/src/data/bedrock/EffectIdMap.php
@@ -36,13 +36,13 @@ final class EffectIdMap{
 	 * @var Effect[]
 	 * @phpstan-var array<int, Effect>
 	 */
-	private $idToEffect = [];
+	private array $idToEffect = [];
 
 	/**
 	 * @var int[]
 	 * @phpstan-var array<int, int>
 	 */
-	private $effectToId = [];
+	private array $effectToId = [];
 
 	private function __construct(){
 		$this->register(EffectIds::SPEED, VanillaEffects::SPEED());
diff --git a/src/data/bedrock/EnchantmentIdMap.php b/src/data/bedrock/EnchantmentIdMap.php
index 94985680a..7ad19c4e0 100644
--- a/src/data/bedrock/EnchantmentIdMap.php
+++ b/src/data/bedrock/EnchantmentIdMap.php
@@ -39,12 +39,12 @@ final class EnchantmentIdMap{
 	 * @var Enchantment[]
 	 * @phpstan-var array<int, Enchantment>
 	 */
-	private $idToEnch = [];
+	private array $idToEnch = [];
 	/**
 	 * @var int[]
 	 * @phpstan-var array<int, int>
 	 */
-	private $enchToId = [];
+	private array $enchToId = [];
 
 	private function __construct(){
 		$this->register(EnchantmentIds::PROTECTION, VanillaEnchantments::PROTECTION());
diff --git a/src/data/bedrock/LegacyToStringBidirectionalIdMap.php b/src/data/bedrock/LegacyToStringBidirectionalIdMap.php
index 1bf1d76d9..59961e32a 100644
--- a/src/data/bedrock/LegacyToStringBidirectionalIdMap.php
+++ b/src/data/bedrock/LegacyToStringBidirectionalIdMap.php
@@ -37,12 +37,12 @@ abstract class LegacyToStringBidirectionalIdMap{
 	 * @var string[]
 	 * @phpstan-var array<int, string>
 	 */
-	private $legacyToString = [];
+	private array $legacyToString = [];
 	/**
 	 * @var int[]
 	 * @phpstan-var array<string, int>
 	 */
-	private $stringToLegacy = [];
+	private array $stringToLegacy = [];
 
 	public function __construct(string $file){
 		$stringToLegacyId = json_decode(Utils::assumeNotFalse(file_get_contents($file), "Missing required resource file"), true);