diff --git a/composer.json b/composer.json
index 05654631..4963551c 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
     "ergebnis/test-util": "~0.9.1",
     "jangregor/phpstan-prophecy": "~0.6.0",
     "phpstan/extension-installer": "^1.0.3",
-    "phpstan/phpstan": "~0.12.5",
+    "phpstan/phpstan": "~0.12.6",
     "phpstan/phpstan-deprecation-rules": "~0.12.2",
     "phpstan/phpstan-phpunit": "~0.12.6",
     "phpstan/phpstan-strict-rules": "~0.12.1",
diff --git a/composer.lock b/composer.lock
index e4dd6439..23581ae4 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": "187821795fdf29ff73d65816fc2438a6",
+    "content-hash": "3f13ab58683f836a1e71e4ec7497ae85",
     "packages": [
         {
             "name": "ergebnis/json-normalizer",
@@ -2137,16 +2137,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.5",
+            "version": "0.12.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "71a20c18f06c53605251a00a8efe443fa85225d1"
+                "reference": "884659352d9ae2446f5ec5c6109b1e893c2387b1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/71a20c18f06c53605251a00a8efe443fa85225d1",
-                "reference": "71a20c18f06c53605251a00a8efe443fa85225d1",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/884659352d9ae2446f5ec5c6109b1e893c2387b1",
+                "reference": "884659352d9ae2446f5ec5c6109b1e893c2387b1",
                 "shasum": ""
             },
             "require": {
@@ -2172,7 +2172,7 @@
                 "MIT"
             ],
             "description": "PHPStan - PHP Static Analysis Tool",
-            "time": "2020-01-12T14:31:21+00:00"
+            "time": "2020-01-20T14:12:32+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",