diff --git a/composer.json b/composer.json
index a2a8947..650e0af 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "type": "library",
     "require-dev": {
         "phpunit/phpunit": ">=6.0",
-        "phpstan/phpstan": "^0.11.19",
+        "phpstan/phpstan": "^0.12.25",
         "doctrine/coding-standard": "^6.0"
     },
     "license": "MIT",
diff --git a/src/PHPStan/Reflection/EnumMethodReflection.php b/src/PHPStan/Reflection/EnumMethodReflection.php
index 6fa3454..36a1401 100644
--- a/src/PHPStan/Reflection/EnumMethodReflection.php
+++ b/src/PHPStan/Reflection/EnumMethodReflection.php
@@ -10,6 +10,8 @@
 use PHPStan\Reflection\MethodReflection;
 use PHPStan\Reflection\ParameterReflection;
 use PHPStan\Reflection\ParametersAcceptor;
+use PHPStan\TrinaryLogic;
+use PHPStan\Type\Generic\TemplateTypeMap;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\Type;
 
@@ -39,6 +41,8 @@ public function __construct(ClassReflection $classReflection, string $methodName
         $this->methodName      = $methodName;
         $this->variants        = [
             new FunctionVariant(
+                TemplateTypeMap::createEmpty(),
+                null,
                 $this->getParameters(),
                 $this->isVariadic(),
                 $this->getReturnType()
@@ -121,4 +125,39 @@ public function getVariants() : array
     {
         return $this->variants;
     }
+
+    public function isDeprecated() : TrinaryLogic
+    {
+        return TrinaryLogic::createNo();
+    }
+
+    public function getDeprecatedDescription() : ?string
+    {
+        return null;
+    }
+
+    public function isFinal() : TrinaryLogic
+    {
+        return TrinaryLogic::createNo();
+    }
+
+    public function isInternal() : TrinaryLogic
+    {
+        return TrinaryLogic::createNo();
+    }
+
+    public function getThrowType() : ?Type
+    {
+        null;
+    }
+
+    public function hasSideEffects() : TrinaryLogic
+    {
+        return TrinaryLogic::createNo();
+    }
+
+    public function getDocComment() : ?string
+    {
+        return null;
+    }
 }