diff --git a/composer.json b/composer.json
index fc13a709..f1453f5e 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "infection/infection": "~0.15.3",
     "jangregor/phpstan-prophecy": "~0.8.1",
     "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 89ff32bf..6b47fdf0 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": "db93289b4d230b9d378360024ff6d521",
+    "content-hash": "5bc413e8726db24d1ee39b7df8a072bd",
     "packages": [
         {
             "name": "ergebnis/json-printer",
@@ -2092,16 +2092,16 @@
         },
         {
             "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": {
@@ -2144,7 +2144,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-02-17T16:22:19+00:00"
+            "time": "2021-02-20T13:24:36+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",