diff --git a/composer.json b/composer.json
index 204cebb0..658c97dc 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "infection/infection": "~0.13.6",
     "phpbench/phpbench": "~0.16.10",
     "phpstan/extension-installer": "^1.0.3",
-    "phpstan/phpstan": "~0.12.8",
+    "phpstan/phpstan": "~0.12.9",
     "phpstan/phpstan-deprecation-rules": "~0.12.2",
     "phpstan/phpstan-phpunit": "~0.12.6",
     "phpstan/phpstan-strict-rules": "~0.12.2",
diff --git a/composer.lock b/composer.lock
index 0340b2ea..8297a928 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a68c8745ced7f44e92f802c3598414ca",
+    "content-hash": "adcd6279c125306367eb83e82162b470",
     "packages": [],
     "packages-dev": [
         {
@@ -2976,16 +2976,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.8",
+            "version": "0.12.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "62a552602b7586d82826231f2fd4cbfe39fe0b1d"
+                "reference": "297cb2458a96ea96d5e9d6ef38f1b7305c071f32"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/62a552602b7586d82826231f2fd4cbfe39fe0b1d",
-                "reference": "62a552602b7586d82826231f2fd4cbfe39fe0b1d",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/297cb2458a96ea96d5e9d6ef38f1b7305c071f32",
+                "reference": "297cb2458a96ea96d5e9d6ef38f1b7305c071f32",
                 "shasum": ""
             },
             "require": {
@@ -3011,7 +3011,7 @@
                 "MIT"
             ],
             "description": "PHPStan - PHP Static Analysis Tool",
-            "time": "2020-01-26T23:36:48+00:00"
+            "time": "2020-02-04T22:30:27+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",