diff --git a/composer.json b/composer.json
index 75784af12..c2442fc4f 100644
--- a/composer.json
+++ b/composer.json
@@ -52,7 +52,7 @@
       "symfony/filesystem": "~6.4.0"
    },
    "require-dev": {
-      "phpstan/phpstan": "2.1.4",
+      "phpstan/phpstan": "2.1.5",
       "phpstan/phpstan-phpunit": "^2.0.0",
       "phpstan/phpstan-strict-rules": "^2.0.0",
       "phpunit/phpunit": "^10.5.24"
diff --git a/composer.lock b/composer.lock
index b0c4ebec3..91ce96fa8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "663122b8f03ef5ec6718a419923a0851",
+    "content-hash": "d63e9f0240056c52c10113b305010130",
     "packages": [
         {
             "name": "adhocore/json-comment",
@@ -1386,16 +1386,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.4",
+            "version": "2.1.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "8f99e18eb775dbaf6460c95fa0b65312da9c746a"
+                "reference": "451b17f9665481ee502adc39be987cb71067ece2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/8f99e18eb775dbaf6460c95fa0b65312da9c746a",
-                "reference": "8f99e18eb775dbaf6460c95fa0b65312da9c746a",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/451b17f9665481ee502adc39be987cb71067ece2",
+                "reference": "451b17f9665481ee502adc39be987cb71067ece2",
                 "shasum": ""
             },
             "require": {
@@ -1440,7 +1440,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-02-10T08:25:21+00:00"
+            "time": "2025-02-13T12:49:56+00:00"
         },
         {
             "name": "phpstan/phpstan-phpunit",
diff --git a/src/Server.php b/src/Server.php
index 252964a91..679a0ef0b 100644
--- a/src/Server.php
+++ b/src/Server.php
@@ -699,7 +699,7 @@ class Server{
 
 	public function removeOp(string $name) : void{
 		$lowercaseName = strtolower($name);
-		foreach($this->operators->getAll() as $operatorName => $_){
+		foreach(Utils::promoteKeys($this->operators->getAll()) as $operatorName => $_){
 			$operatorName = (string) $operatorName;
 			if($lowercaseName === strtolower($operatorName)){
 				$this->operators->remove($operatorName);
diff --git a/src/utils/Utils.php b/src/utils/Utils.php
index 46cd49ec4..2a9dd65da 100644
--- a/src/utils/Utils.php
+++ b/src/utils/Utils.php
@@ -587,7 +587,7 @@ final class Utils{
 	 * @phpstan-param \Closure(TMemberType) : void $validator
 	 */
 	public static function validateArrayValueType(array $array, \Closure $validator) : void{
-		foreach($array as $k => $v){
+		foreach(Utils::promoteKeys($array) as $k => $v){
 			try{
 				$validator($v);
 			}catch(\TypeError $e){
diff --git a/tests/phpstan/configs/actual-problems.neon b/tests/phpstan/configs/actual-problems.neon
index ef9828b37..73b7a65c1 100644
--- a/tests/phpstan/configs/actual-problems.neon
+++ b/tests/phpstan/configs/actual-problems.neon
@@ -48,12 +48,6 @@ parameters:
 			count: 1
 			path: ../../../src/VersionInfo.php
 
-		-
-			message: '#^Method pocketmine\\VersionInfo\:\:GIT_HASH\(\) should return string but returns mixed\.$#'
-			identifier: return.type
-			count: 1
-			path: ../../../src/VersionInfo.php
-
 		-
 			message: '#^Static property pocketmine\\VersionInfo\:\:\$gitHash \(string\|null\) does not accept mixed\.$#'
 			identifier: assign.propertyType
@@ -918,24 +912,6 @@ parameters:
 			count: 1
 			path: ../../../src/plugin/PluginDescription.php
 
-		-
-			message: '#^Parameter \#1 \$haystack of function stripos expects string, mixed given\.$#'
-			identifier: argument.type
-			count: 1
-			path: ../../../src/plugin/PluginDescription.php
-
-		-
-			message: '#^Parameter \#2 \$subject of function preg_match expects string, mixed given\.$#'
-			identifier: argument.type
-			count: 1
-			path: ../../../src/plugin/PluginDescription.php
-
-		-
-			message: '#^Parameter \#3 \$subject of function str_replace expects array\<string\>\|string, mixed given\.$#'
-			identifier: argument.type
-			count: 1
-			path: ../../../src/plugin/PluginDescription.php
-
 		-
 			message: '#^Property pocketmine\\plugin\\PluginDescription\:\:\$authors \(array\<string\>\) does not accept list\<mixed\>\.$#'
 			identifier: assign.propertyType
@@ -966,12 +942,6 @@ parameters:
 			count: 1
 			path: ../../../src/resourcepacks/ZippedResourcePack.php
 
-		-
-			message: '#^Method pocketmine\\resourcepacks\\ZippedResourcePack\:\:getSha256\(\) should return string but returns string\|false\.$#'
-			identifier: return.type
-			count: 1
-			path: ../../../src/resourcepacks/ZippedResourcePack.php
-
 		-
 			message: '#^Property pocketmine\\resourcepacks\\ZippedResourcePack\:\:\$fileResource \(resource\) does not accept resource\|false\.$#'
 			identifier: assign.propertyType
@@ -1009,7 +979,7 @@ parameters:
 			path: ../../../src/utils/Config.php
 
 		-
-			message: '#^Parameter \#1 \$config of static method pocketmine\\utils\\Config\:\:writeProperties\(\) expects array\<int\|string, bool\|float\|int\|string\>, array\<int\|string, mixed\> given\.$#'
+			message: '#^Parameter \#1 \$config of static method pocketmine\\utils\\Config\:\:writeProperties\(\) expects array\<int\|string, bool\|float\|int\|string\>, array\<mixed\> given\.$#'
 			identifier: argument.type
 			count: 1
 			path: ../../../src/utils/Config.php
diff --git a/tests/phpstan/configs/phpstan-bugs.neon b/tests/phpstan/configs/phpstan-bugs.neon
index 9ab125763..aeb3fae29 100644
--- a/tests/phpstan/configs/phpstan-bugs.neon
+++ b/tests/phpstan/configs/phpstan-bugs.neon
@@ -114,12 +114,6 @@ parameters:
 			count: 1
 			path: ../../../src/crash/CrashDump.php
 
-		-
-			message: '#^Call to function assert\(\) with false and ''unknown hit type'' will always evaluate to false\.$#'
-			identifier: function.impossibleType
-			count: 1
-			path: ../../../src/entity/projectile/Projectile.php
-
 		-
 			message: '#^Property pocketmine\\item\\WritableBookBase\:\:\$pages \(list\<pocketmine\\item\\WritableBookPage\>\) does not accept non\-empty\-array\<int, pocketmine\\item\\WritableBookPage\>\.$#'
 			identifier: assign.propertyType