diff --git a/changelogs/4.0-snapshot.md b/changelogs/4.0-snapshot.md
index 8dec8eac6..4b1374394 100644
--- a/changelogs/4.0-snapshot.md
+++ b/changelogs/4.0-snapshot.md
@@ -165,6 +165,8 @@ This version features substantial changes to the network system, improving coher
   - `Living->hasEffect()` -> `EffectManager->has()`
   - `Living->hasEffects()` -> `EffectManager->hasEffects()`
   - `Living->getEffects()` -> `EffectManager->all()`
+- The following API methods have been removed:
+  - `Human->getRawUniqueId()`: use `Human->getUniqueId()->toBinary()` instead
 - The following classes have been removed:
   - `Creature`
   - `Damageable`
diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index 5e9e96d9d..ee18ea34b 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -1781,16 +1781,17 @@ class Server{
 		foreach($this->playerList as $p){
 			$p->getNetworkSession()->onPlayerAdded($player);
 		}
-		$this->playerList[$player->getRawUniqueId()] = $player;
+		$rawUUID = $player->getUniqueId()->toBinary();
+		$this->playerList[$rawUUID] = $player;
 
 		if($this->sendUsageTicker > 0){
-			$this->uniquePlayers[$player->getRawUniqueId()] = $player->getRawUniqueId();
+			$this->uniquePlayers[$rawUUID] = $rawUUID;
 		}
 	}
 
 	public function removeOnlinePlayer(Player $player) : void{
-		if(isset($this->playerList[$player->getRawUniqueId()])){
-			unset($this->playerList[$player->getRawUniqueId()]);
+		if(isset($this->playerList[$rawUUID = $player->getUniqueId()->toBinary()])){
+			unset($this->playerList[$rawUUID]);
 			foreach($this->playerList as $p){
 				$p->getNetworkSession()->onPlayerRemoved($player);
 			}
diff --git a/src/pocketmine/entity/Human.php b/src/pocketmine/entity/Human.php
index 6364e72c8..1dd906d99 100644
--- a/src/pocketmine/entity/Human.php
+++ b/src/pocketmine/entity/Human.php
@@ -82,7 +82,6 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 
 	/** @var UUID */
 	protected $uuid;
-	protected $rawUUID;
 
 	public $width = 0.6;
 	public $height = 1.8;
@@ -137,13 +136,6 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 		return $this->uuid;
 	}
 
-	/**
-	 * @return string
-	 */
-	public function getRawUniqueId() : string{
-		return $this->rawUUID;
-	}
-
 	/**
 	 * Returns a Skin object containing information about this human's skin.
 	 * @return Skin
diff --git a/src/pocketmine/player/Player.php b/src/pocketmine/player/Player.php
index 570254d16..858a69834 100644
--- a/src/pocketmine/player/Player.php
+++ b/src/pocketmine/player/Player.php
@@ -282,7 +282,6 @@ class Player extends Human implements CommandSender, ChunkLoader, ChunkListener,
 		$this->randomClientId = $this->playerInfo->getClientId();
 
 		$this->uuid = $this->playerInfo->getUuid();
-		$this->rawUUID = $this->uuid->toBinary();
 		$this->xuid = $this->playerInfo->getXuid();
 
 		$this->perm = new PermissibleBase($this);
@@ -575,7 +574,7 @@ class Player extends Human implements CommandSender, ChunkLoader, ChunkListener,
 	 * @return bool
 	 */
 	public function canSee(Player $player) : bool{
-		return !isset($this->hiddenPlayers[$player->getRawUniqueId()]);
+		return !isset($this->hiddenPlayers[$player->getUniqueId()->toBinary()]);
 	}
 
 	/**
@@ -585,7 +584,7 @@ class Player extends Human implements CommandSender, ChunkLoader, ChunkListener,
 		if($player === $this){
 			return;
 		}
-		$this->hiddenPlayers[$player->getRawUniqueId()] = true;
+		$this->hiddenPlayers[$player->getUniqueId()->toBinary()] = true;
 		$player->despawnFrom($this);
 	}
 
@@ -596,7 +595,7 @@ class Player extends Human implements CommandSender, ChunkLoader, ChunkListener,
 		if($player === $this){
 			return;
 		}
-		unset($this->hiddenPlayers[$player->getRawUniqueId()]);
+		unset($this->hiddenPlayers[$player->getUniqueId()->toBinary()]);
 		if($player->isOnline()){
 			$player->spawnTo($this);
 		}