diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index fe398de..07cd349 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-version: [8.2, 8.3]
+        php-version: [8.2, 8.3, 8.4]
 
     runs-on: ubuntu-latest
 
diff --git a/LICENSE b/LICENSE
index 1e98576..ae616bf 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2024 nimbly.io
+Copyright (c) 2025 nimbly.io
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/composer.json b/composer.json
index 2233d01..e859138 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
 	},
 	"require-dev": {
         "phpunit/phpunit": "^9.0",
-        "vimeo/psalm": "^5.0",
+        "vimeo/psalm": "^6.0",
         "symfony/var-dumper": "^5.1",
         "nimbly/capsule": "^3.0"
 	}
diff --git a/psalm.xml b/psalm.xml
index 96323bd..83b76b1 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -1,12 +1,13 @@
 <?xml version="1.0"?>
 <psalm
-    errorLevel="2"
+    errorLevel="3"
     resolveFromConfigFile="true"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
     findUnusedBaselineEntry="true"
 	findUnusedCode="false"
+	ensureOverrideAttribute="false"
 >
     <projectFiles>
         <directory name="src" />