diff --git a/composer.json b/composer.json
index 2a6c337a..e70ce466 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "ergebnis/test-util": "^1.4.0",
     "infection/infection": "~0.18.2",
     "phpstan/extension-installer": "^1.1.0",
-    "phpstan/phpstan": "~0.12.77",
+    "phpstan/phpstan": "~0.12.78",
     "phpstan/phpstan-deprecation-rules": "~0.12.6",
     "phpstan/phpstan-phpunit": "~0.12.17",
     "phpstan/phpstan-strict-rules": "~0.12.9",
diff --git a/composer.lock b/composer.lock
index cfa1d568..a53e8f54 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": "9479e59aad85169b959d70c6b26569cb",
+    "content-hash": "7d589fdbf39c13d4fdd1780e92363a3f",
     "packages": [
         {
             "name": "justinrainbow/json-schema",
@@ -2610,16 +2610,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.77",
+            "version": "0.12.78",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "1f10b8c8d118d01e7b492f9707999d456be5812c"
+                "reference": "eecce8d2ee3cac6769f37b4cb1998b2715f82984"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/1f10b8c8d118d01e7b492f9707999d456be5812c",
-                "reference": "1f10b8c8d118d01e7b492f9707999d456be5812c",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/eecce8d2ee3cac6769f37b4cb1998b2715f82984",
+                "reference": "eecce8d2ee3cac6769f37b4cb1998b2715f82984",
                 "shasum": ""
             },
             "require": {
@@ -2650,7 +2650,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.77"
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.78"
             },
             "funding": [
                 {
@@ -2666,7 +2666,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-02-17T16:22:19+00:00"
+            "time": "2021-02-20T13:24:36+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",