diff --git a/composer.json b/composer.json
index 181750cf..b4b7c598 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
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     "phpspec/prophecy": "^1.12.2",
     "phpspec/prophecy-phpunit": "^2.0.1",
-    "phpstan/phpstan": "^0.12.76",
+    "phpstan/phpstan": "^0.12.77",
     "phpunit/phpunit": "^9.5.2",
     "psalm/plugin-phpunit": "^0.15.1",
     "roave/backward-compatibility-check": "^5.0.0",
diff --git a/composer.lock b/composer.lock
index 83080f7e..12fcf9f7 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": "9b8ef10f36a98cf32778b7a2261f55c5",
+    "content-hash": "676cbfe0d005d34dab5a1847aeaa42e3",
     "packages": [
         {
             "name": "amphp/amp",
@@ -3570,16 +3570,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.76",
+            "version": "0.12.77",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "7aaaf9a759a29795e8f46d48041af1c1f1b23d38"
+                "reference": "1f10b8c8d118d01e7b492f9707999d456be5812c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/7aaaf9a759a29795e8f46d48041af1c1f1b23d38",
-                "reference": "7aaaf9a759a29795e8f46d48041af1c1f1b23d38",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/1f10b8c8d118d01e7b492f9707999d456be5812c",
+                "reference": "1f10b8c8d118d01e7b492f9707999d456be5812c",
                 "shasum": ""
             },
             "require": {
@@ -3610,7 +3610,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.76"
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.77"
             },
             "funding": [
                 {
@@ -3626,7 +3626,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-02-13T11:47:44+00:00"
+            "time": "2021-02-17T16:22:19+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",