diff --git a/composer.json b/composer.json
index 2d712deb64..e205a0798d 100644
--- a/composer.json
+++ b/composer.json
@@ -57,7 +57,7 @@
       "phpstan/phpstan-strict-rules": "^2.0.0",
       "phpunit/phpunit": "^10.5.24"
    },
-   "provide": {
+   "replace": {
       "symfony/polyfill-ctype": "*",
       "symfony/polyfill-mbstring": "*"
    },
diff --git a/composer.lock b/composer.lock
index b82a014da3..9cb0721fcc 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": "d8fa42f33a3bcb26014e6f862366dbd6",
+    "content-hash": "ceb98091ac3f61f1a4b87708c48dc75a",
     "packages": [
         {
             "name": "adhocore/json-comment",
diff --git a/src/thread/CommonThreadPartsTrait.php b/src/thread/CommonThreadPartsTrait.php
index e1c9d7c6bb..de606a7b29 100644
--- a/src/thread/CommonThreadPartsTrait.php
+++ b/src/thread/CommonThreadPartsTrait.php
@@ -94,7 +94,17 @@ trait CommonThreadPartsTrait{
 		}
 	}
 
-	public function getCrashInfo() : ?ThreadCrashInfo{ return $this->crashInfo; }
+	public function getCrashInfo() : ?ThreadCrashInfo{
+		//TODO: Joining a crashed worker might be a bit sus, but we need to make sure the thread's shutdown
+		//handler has run before we try to collect the crash info. As of 6.1.1, pmmpthread sets isTerminated=true
+		//*before* the shutdown handler is invoked, so we might land here before the crash info has been set.
+		//In the future this should probably be fixed by running the shutdown handlers before setting isTerminated,
+		//but this workaround should be good enough for now.
+		if($this->isTerminated() && !$this->isJoined()){
+			$this->join();
+		}
+		return $this->crashInfo;
+	}
 
 	public function start(int $options = NativeThread::INHERIT_NONE) : bool{
 		ThreadManager::getInstance()->add($this);