diff --git a/.github/workflows/test_with_doctrine.yaml b/.github/workflows/test_with_doctrine.yaml
index 34b2200de67..b512584a173 100644
--- a/.github/workflows/test_with_doctrine.yaml
+++ b/.github/workflows/test_with_doctrine.yaml
@@ -32,4 +32,4 @@ jobs:
                     # do not intall doctrine/orm phpstan, it conflicts with Retor's one
                     composer install -d orm --no-dev
 
-            -   run: bin/rector process orm/lib --set dead-code --autoload-file orm/vendor/autoload.php
+            -   run: bin/rector process orm/lib --config ci/config/rector-doctrine.yaml --autoload-file orm/vendor/autoload.php --debug
diff --git a/ci/config/rector-doctrine.yaml b/ci/config/rector-doctrine.yaml
new file mode 100644
index 00000000000..641c853a130
--- /dev/null
+++ b/ci/config/rector-doctrine.yaml
@@ -0,0 +1,4 @@
+parameters:
+    auto_import_names: false
+    sets:
+        - "dead-code"
diff --git a/rules/phpstan/src/Rector/Node/RemoveNonExistingVarAnnotationRector.php b/rules/phpstan/src/Rector/Node/RemoveNonExistingVarAnnotationRector.php
index 3be84e3d17c..7c6c9821736 100644
--- a/rules/phpstan/src/Rector/Node/RemoveNonExistingVarAnnotationRector.php
+++ b/rules/phpstan/src/Rector/Node/RemoveNonExistingVarAnnotationRector.php
@@ -92,8 +92,11 @@ PHP
             return null;
         }
 
-        /** @var PhpDocInfo $phpDocInfo */
+        /** @var PhpDocInfo|null $phpDocInfo */
         $phpDocInfo = $node->getAttribute(AttributeKey::PHP_DOC_INFO);
+        if ($phpDocInfo === null) {
+            return null;
+        }
 
         $varTagValue = $phpDocInfo->getVarTagValue();
         if ($varTagValue === null) {
diff --git a/src/PhpParser/Node/Manipulator/PropertyManipulator.php b/src/PhpParser/Node/Manipulator/PropertyManipulator.php
index f36964c14e5..f7475647c58 100644
--- a/src/PhpParser/Node/Manipulator/PropertyManipulator.php
+++ b/src/PhpParser/Node/Manipulator/PropertyManipulator.php
@@ -125,9 +125,9 @@ final class PropertyManipulator
             return true;
         }
 
-        /** @var PhpDocInfo $phpDocInfo */
+        /** @var PhpDocInfo|null $phpDocInfo */
         $phpDocInfo = $property->getAttribute(AttributeKey::PHP_DOC_INFO);
-        if ($phpDocInfo->hasByType(SerializerTypeTagValueNode::class)) {
+        if ($phpDocInfo !== null && $phpDocInfo->hasByType(SerializerTypeTagValueNode::class)) {
             return true;
         }