diff --git a/composer.json b/composer.json
index 011adf8f0..966fddeeb 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
       "pocketmine/spl": "0.3.0",
       "pocketmine/binaryutils": "dev-master#c824ac67eeeb6899c2a9ec91a769eb9ed6e3f595",
       "pocketmine/nbt": "dev-master#09809564c7e58c322dcefc6905ab333313e05d1f",
-      "pocketmine/math": "dev-master#f88790f343b72563bf69658d6f14630fba580905",
+      "pocketmine/math": "dev-master#95ae5600328ed2add44c0bc830a68d3660e9e0ef",
       "pocketmine/snooze": "dev-master#541f0f038f401e9117ae60c8dbc167a46569282d"
    },
    "autoload": {
diff --git a/composer.lock b/composer.lock
index ebccbec7e..4cb1f207f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "9993493665deb27b5b984de2c596cdc5",
+    "content-hash": "43d1b7cd0a341ec946218a7664720fd0",
     "packages": [
         {
             "name": "pocketmine/binaryutils",
@@ -46,12 +46,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/Math.git",
-                "reference": "f88790f343b72563bf69658d6f14630fba580905"
+                "reference": "95ae5600328ed2add44c0bc830a68d3660e9e0ef"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/Math/zipball/f88790f343b72563bf69658d6f14630fba580905",
-                "reference": "f88790f343b72563bf69658d6f14630fba580905",
+                "url": "https://api.github.com/repos/pmmp/Math/zipball/95ae5600328ed2add44c0bc830a68d3660e9e0ef",
+                "reference": "95ae5600328ed2add44c0bc830a68d3660e9e0ef",
                 "shasum": ""
             },
             "require": {
@@ -72,7 +72,7 @@
                 "source": "https://github.com/pmmp/Math/tree/master",
                 "issues": "https://github.com/pmmp/Math/issues"
             },
-            "time": "2018-05-28T12:55:13+00:00"
+            "time": "2018-06-09T09:26:30+00:00"
         },
         {
             "name": "pocketmine/nbt",
diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index 04e010b42..920ded9ac 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -1503,7 +1503,7 @@ class Player extends Human implements CommandSender, ChunkLoader, IPlayer{
 	}
 
 	protected function checkNearEntities(int $tickDiff){
-		foreach($this->level->getNearbyEntities($this->boundingBox->grow(1, 0.5, 1), $this) as $entity){
+		foreach($this->level->getNearbyEntities($this->boundingBox->expandedCopy(1, 0.5, 1), $this) as $entity){
 			$entity->scheduleUpdate();
 
 			if(!$entity->isAlive() or $entity->isFlaggedForDespawn()){
diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index 442f7ae0e..478fcecce 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -1478,7 +1478,7 @@ abstract class Entity extends Location implements Metadatable, EntityIds{
 
 		Timings::$entityMoveTimer->startTiming();
 
-		$newBB = $this->boundingBox->getOffsetBoundingBox($dx, $dy, $dz);
+		$newBB = $this->boundingBox->offsetCopy($dx, $dy, $dz);
 
 		$list = $this->level->getCollisionCubes($this, $newBB, false);
 
@@ -1566,7 +1566,7 @@ abstract class Entity extends Location implements Metadatable, EntityIds{
 
 			assert(abs($dx) <= 20 and abs($dy) <= 20 and abs($dz) <= 20, "Movement distance is excessive: dx=$dx, dy=$dy, dz=$dz");
 
-			$list = $this->level->getCollisionCubes($this, $this->level->getTickRate() > 1 ? $this->boundingBox->getOffsetBoundingBox($dx, $dy, $dz) : $this->boundingBox->addCoord($dx, $dy, $dz), false);
+			$list = $this->level->getCollisionCubes($this, $this->level->getTickRate() > 1 ? $this->boundingBox->offsetCopy($dx, $dy, $dz) : $this->boundingBox->addCoord($dx, $dy, $dz), false);
 
 			foreach($list as $bb){
 				$dy = $bb->calculateYOffset($this->boundingBox, $dy);
diff --git a/src/pocketmine/entity/projectile/Projectile.php b/src/pocketmine/entity/projectile/Projectile.php
index 023a504f1..e88e0cc6d 100644
--- a/src/pocketmine/entity/projectile/Projectile.php
+++ b/src/pocketmine/entity/projectile/Projectile.php
@@ -185,7 +185,7 @@ abstract class Projectile extends Entity{
 				continue;
 			}
 
-			$entityBB = $entity->boundingBox->grow(0.3, 0.3, 0.3);
+			$entityBB = $entity->boundingBox->expandedCopy(0.3, 0.3, 0.3);
 			$entityHitResult = $entityBB->calculateIntercept($start, $end);
 
 			if($entityHitResult === null){
diff --git a/src/pocketmine/entity/projectile/SplashPotion.php b/src/pocketmine/entity/projectile/SplashPotion.php
index 434f854ca..4720a5c28 100644
--- a/src/pocketmine/entity/projectile/SplashPotion.php
+++ b/src/pocketmine/entity/projectile/SplashPotion.php
@@ -81,7 +81,7 @@ class SplashPotion extends Throwable{
 
 		if($hasEffects){
 			if(!$this->willLinger()){
-				foreach($this->level->getNearbyEntities($this->boundingBox->grow(4.125, 2.125, 4.125), $this) as $entity){
+				foreach($this->level->getNearbyEntities($this->boundingBox->expandedCopy(4.125, 2.125, 4.125), $this) as $entity){
 					if($entity instanceof Living){
 						$distanceSquared = $entity->distanceSquared($this);
 						if($distanceSquared > 16){ //4 blocks
diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index a7284afaa..10acf678e 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -1185,7 +1185,7 @@ class Level implements ChunkManager, Metadatable{
 		}
 
 		if($entities){
-			foreach($this->getCollidingEntities($bb->grow(0.25, 0.25, 0.25), $entity) as $ent){
+			foreach($this->getCollidingEntities($bb->expandedCopy(0.25, 0.25, 0.25), $entity) as $ent){
 				$collides[] = clone $ent->boundingBox;
 			}
 		}
@@ -1818,7 +1818,7 @@ class Level implements ChunkManager, Metadatable{
 
 				if($player !== null){
 					if(($diff = $player->getNextPosition()->subtract($player->getPosition())) and $diff->lengthSquared() > 0.00001){
-						$bb = $player->getBoundingBox()->getOffsetBoundingBox($diff->x, $diff->y, $diff->z);
+						$bb = $player->getBoundingBox()->offsetCopy($diff->x, $diff->y, $diff->z);
 						if($collisionBox->intersectsWith($bb)){
 							return false; //Inside player BB
 						}