diff --git a/src/pocketmine/entity/Human.php b/src/pocketmine/entity/Human.php
index b80ecb45d..85cfeceee 100644
--- a/src/pocketmine/entity/Human.php
+++ b/src/pocketmine/entity/Human.php
@@ -57,7 +57,6 @@ use pocketmine\network\mcpe\protocol\types\inventory\ItemStackWrapper;
 use pocketmine\network\mcpe\protocol\types\PlayerListEntry;
 use pocketmine\network\mcpe\protocol\types\SkinAdapterSingleton;
 use pocketmine\Player;
-use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\UUID;
 use function array_filter;
 use function array_merge;
@@ -70,7 +69,6 @@ use function max;
 use function min;
 use function mt_rand;
 use function random_int;
-use function sprintf;
 use function strlen;
 use const INT32_MAX;
 use const INT32_MIN;
@@ -397,9 +395,6 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 
 		$xpLevel = (int) $newLevel;
 		$xpProgress = $newLevel - (int) $newLevel;
-		if($xpProgress > 1.0){
-			throw new AssumptionFailedError(sprintf("newLevel - (int) newLevel should never be bigger than 1, but have %.53f (newLevel=%.53f)", $xpProgress, $newLevel));
-		}
 		return $this->setXpAndProgress($xpLevel, $xpProgress);
 	}
 
diff --git a/src/pocketmine/event/player/PlayerExperienceChangeEvent.php b/src/pocketmine/event/player/PlayerExperienceChangeEvent.php
index 3322a91b8..4d889a37d 100644
--- a/src/pocketmine/event/player/PlayerExperienceChangeEvent.php
+++ b/src/pocketmine/event/player/PlayerExperienceChangeEvent.php
@@ -79,6 +79,9 @@ class PlayerExperienceChangeEvent extends EntityEvent implements Cancellable{
 	}
 
 	public function setNewProgress(?float $newProgress) : void{
+		if($newProgress < 0.0 || $newProgress > 1.0){
+			throw new \InvalidArgumentException("XP progress must be in range 0-1");
+		}
 		$this->newProgress = $newProgress;
 	}
 }