diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0854ca6..f33124e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# Version 26.1.0
+
+## Features
+
+### PHP 8.4 Compatibility
+
+* Add PHP 8.4 support
+
 # Version 26.0.2
 
 ## Bugfixes
diff --git a/composer.json b/composer.json
index 171ce23..f02ce69 100755
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "license": "MIT",
     "require": {
         "php": "^8.1",
-        "techdivision/import-product": "^26.0.0"
+        "techdivision/import-product": "^26.2"
     },
     "require-dev": {
         "doctrine/dbal": "^4.0.4",
@@ -40,4 +40,4 @@
             ]
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/Observers/CleanUpLinkObserver.php b/src/Observers/CleanUpLinkObserver.php
index 47cb721..15fdcc7 100644
--- a/src/Observers/CleanUpLinkObserver.php
+++ b/src/Observers/CleanUpLinkObserver.php
@@ -61,11 +61,11 @@ class CleanUpLinkObserver extends AbstractProductImportObserver implements Obser
      *
      * @param \TechDivision\Import\Product\Link\Services\ProductLinkProcessorInterface $productLinkProcessor The
      *                                                                                                       product link processor instance
-     * @param StateDetectorInterface|null                                              $stateDetector        The state detector instance to use
+     * @param StateDetectorInterface|null $stateDetector        The state detector instance to use
      */
     public function __construct(
         ProductLinkProcessorInterface $productLinkProcessor,
-        StateDetectorInterface $stateDetector = null
+        ?StateDetectorInterface $stateDetector = null
     ) {
 
         // pass the state detector to the parent constructor
@@ -123,7 +123,7 @@ protected function process()
         // prepare the links for the found link types and clean-up
         foreach ($this->linkTypes as $linkTypeCode => $columns) {
             // shift the column with the header information from the stack
-            list ($columnNameChildSkus, $callbackChildSkus) = array_shift($columns);
+            [$columnNameChildSkus, $callbackChildSkus] = array_shift($columns);
 
             // query whether or not, we've up sell, cross sell or relation products
             $links = $this->getValue($columnNameChildSkus, [], $callbackChildSkus);