diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 631dd64..4141201 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -32,7 +32,7 @@ jobs:
         run: composer run-script phpinsights-github
 
       - name: Run static type analysis
-        run: composer run-script phpstan
+        run: composer run-script phpstan-github
 
       - name: Run test suite
         run: composer run-script phpunit
diff --git a/composer.json b/composer.json
index 1d3c7b1..cd4f700 100644
--- a/composer.json
+++ b/composer.json
@@ -46,6 +46,7 @@
         "phpinsights": "phpinsights analyse --no-interaction --ansi --config-path=phpinsights.php --summary src",
         "phpinsights-github": "phpinsights analyse --no-interaction --ansi --config-path=phpinsights.php --format=github-action src",
         "phpstan": "phpstan",
+        "phpstan-github": "phpstan --error-format=github",
         "phpunit": "phpunit",
         "test": [
             "@phpunit",
diff --git a/src/ClassReflectionFinder.php b/src/ClassReflectionFinder.php
index a4be4ef..d32e96c 100644
--- a/src/ClassReflectionFinder.php
+++ b/src/ClassReflectionFinder.php
@@ -66,7 +66,10 @@ private function getClassNamesFromPaths(
             }
             $classPaths = array_merge($classPaths, $filePaths);
         }
-        $classNames = array_map($pathToClassName ?? [$this, 'getClassNameFromFileName'], $classPaths);
+        $classNames = array_map(
+            $pathToClassName ?? [$this, 'getClassNameFromFileName'],
+            $classPaths
+        );
         return array_filter(
             $classNames,
             [$this->reflectionProvider, 'hasClass']
diff --git a/src/ClassRegistryInitExtension.php b/src/ClassRegistryInitExtension.php
index baf120d..d206f11 100644
--- a/src/ClassRegistryInitExtension.php
+++ b/src/ClassRegistryInitExtension.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace ARiddlestone\PHPStanCakePHP2;
 
 use ARiddlestone\PHPStanCakePHP2\Service\SchemaService;
@@ -10,13 +12,13 @@
 use PHPStan\Reflection\MethodReflection;
 use PHPStan\Reflection\ReflectionProvider;
 use PHPStan\Type\BooleanType;
-use PHPStan\Type\DynamicStaticMethodReturnTypeExtension;
+use PHPStan\Type\DynamicStaticMethodReturnTypeExtension as PHPStanExtension;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\ObjectWithoutClassType;
 use PHPStan\Type\Type;
 use PHPStan\Type\UnionType;
 
-class ClassRegistryInitExtension implements DynamicStaticMethodReturnTypeExtension
+final class ClassRegistryInitExtension implements PHPStanExtension
 {
     private ReflectionProvider $reflectionProvider;
 
@@ -24,8 +26,8 @@ class ClassRegistryInitExtension implements DynamicStaticMethodReturnTypeExtensi
 
     public function __construct(
         ReflectionProvider $reflectionProvider,
-        SchemaService $schemaService)
-    {
+        SchemaService $schemaService
+    ) {
         $this->reflectionProvider = $reflectionProvider;
         $this->schemaService = $schemaService;
     }
@@ -35,13 +37,17 @@ public function getClass(): string
         return 'ClassRegistry';
     }
 
-    public function isStaticMethodSupported(MethodReflection $methodReflection): bool
-    {
+    public function isStaticMethodSupported(
+        MethodReflection $methodReflection
+    ): bool {
         return $methodReflection->getName() === 'init';
     }
 
-    public function getTypeFromStaticMethodCall(MethodReflection $methodReflection, StaticCall $methodCall, Scope $scope): ?Type
-    {
+    public function getTypeFromStaticMethodCall(
+        MethodReflection $methodReflection,
+        StaticCall $methodCall,
+        Scope $scope
+    ): ?Type {
         $arg1 = $methodCall->getArgs()[0]->value;
         $evaluator = new ConstExprEvaluator();
         $arg1 = $evaluator->evaluateSilently($arg1);
@@ -61,7 +67,7 @@ private function getDefaultType(): Type
     {
         return new UnionType([
             new BooleanType(),
-            new ObjectWithoutClassType()
+            new ObjectWithoutClassType(),
         ]);
     }
 }
diff --git a/src/Service/SchemaService.php b/src/Service/SchemaService.php
index f9890aa..c410903 100644
--- a/src/Service/SchemaService.php
+++ b/src/Service/SchemaService.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace ARiddlestone\PHPStanCakePHP2\Service;
 
 use ARiddlestone\PHPStanCakePHP2\ClassReflectionFinder;
@@ -30,7 +32,6 @@ final class SchemaService
     private ?array $tableSchemas = null;
 
     /**
-     * @param ReflectionProvider $reflectionProvider
      * @param array<string> $schemaPaths
      */
     public function __construct(
@@ -50,8 +51,8 @@ public function hasTable(string $table): bool
     }
 
     /**
-     * @param string $table
      * @return table_schema|null
+     *
      * @throws Exception
      */
     public function getTableSchema(string $table)
@@ -73,10 +74,12 @@ private function getTableSchemas(): array
             return $this->tableSchemas;
         }
         $cakeSchemaPropertyNames = array_map(
-            function (ReflectionProperty $reflectionProperty) {
+            static function (ReflectionProperty $reflectionProperty) {
                 return $reflectionProperty->getName();
             },
-            $this->reflectionProvider->getClass('CakeSchema')->getNativeReflection()->getProperties()
+            $this->reflectionProvider->getClass('CakeSchema')
+                ->getNativeReflection()
+                ->getProperties()
         );
         $this->tableSchemas = [];
         $classReflectionFinder = new ClassReflectionFinder(
@@ -91,15 +94,19 @@ function (string $fileName) {
         );
         foreach ($schemaReflections as $schemaReflection) {
             $propertyNames = array_map(
-                function (ReflectionProperty $reflectionProperty) {
+                static function (ReflectionProperty $reflectionProperty) {
                     return $reflectionProperty->getName();
                 },
                 $schemaReflection->getNativeReflection()
                     ->getProperties(CoreReflectionProperty::IS_PUBLIC)
             );
-            $tableProperties = array_diff($propertyNames, $cakeSchemaPropertyNames);
+            $tableProperties = array_diff(
+                $propertyNames,
+                $cakeSchemaPropertyNames
+            );
             $this->tableSchemas += array_intersect_key(
-                $schemaReflection->getNativeReflection()->getDefaultProperties(),
+                $schemaReflection->getNativeReflection()
+                    ->getDefaultProperties(),
                 array_fill_keys($tableProperties, null)
             );
         }