diff --git a/composer.json b/composer.json
index 0fb08c4d..95581e47 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
     "ergebnis/test-util": "^1.0.0",
     "infection/infection": "~0.15.3",
     "phpstan/extension-installer": "^1.0.5",
-    "phpstan/phpstan": "~0.12.40",
+    "phpstan/phpstan": "~0.12.42",
     "phpstan/phpstan-deprecation-rules": "~0.12.5",
     "phpstan/phpstan-strict-rules": "~0.12.5",
     "phpunit/phpunit": "^8.5.8",
diff --git a/composer.lock b/composer.lock
index 80d29a31..60f54951 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": "7ecd9bc25e6e585e997f24eeb26eb5b4",
+    "content-hash": "fbfaf6d657616f3e239432da6956c3da",
     "packages": [],
     "packages-dev": [
         {
@@ -2336,16 +2336,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.40",
+            "version": "0.12.42",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "dce7293ad7b59fc09a9ab9b0b5b44902c092ca17"
+                "reference": "7c43b7c2d5ca6554f6231e82e342a710163ac5f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/dce7293ad7b59fc09a9ab9b0b5b44902c092ca17",
-                "reference": "dce7293ad7b59fc09a9ab9b0b5b44902c092ca17",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/7c43b7c2d5ca6554f6231e82e342a710163ac5f4",
+                "reference": "7c43b7c2d5ca6554f6231e82e342a710163ac5f4",
                 "shasum": ""
             },
             "require": {
@@ -2388,7 +2388,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2020-08-26T19:06:20+00:00"
+            "time": "2020-09-02T13:14:53+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",