diff --git a/composer.json b/composer.json
index 7052aaa5..15497150 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,7 @@
     "ergebnis/phpstan-rules": "^1.0.0",
     "infection/infection": "~0.26.6",
     "phpstan/extension-installer": "^1.1.0",
-    "phpstan/phpstan": "^1.5.5",
+    "phpstan/phpstan": "^1.5.6",
     "phpstan/phpstan-deprecation-rules": "^1.0.0",
     "phpstan/phpstan-doctrine": "^1.3.2",
     "phpstan/phpstan-phpunit": "^1.1.0",
diff --git a/composer.lock b/composer.lock
index 8d29dfda..2776762e 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": "3b0c1e02e26e5342bd9571c185e3267d",
+    "content-hash": "c66f4e38eb4747fbb8bc6816df5500c0",
     "packages": [
         {
             "name": "composer/package-versions-deprecated",
@@ -4407,16 +4407,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.5.5",
+            "version": "1.5.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "d77a607667f29ae099c0686f99664bd451fd23df"
+                "reference": "799dd8c2d2c9c704bb55d2078078cb970cf0f6d1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/d77a607667f29ae099c0686f99664bd451fd23df",
-                "reference": "d77a607667f29ae099c0686f99664bd451fd23df",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/799dd8c2d2c9c704bb55d2078078cb970cf0f6d1",
+                "reference": "799dd8c2d2c9c704bb55d2078078cb970cf0f6d1",
                 "shasum": ""
             },
             "require": {
@@ -4442,7 +4442,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/1.5.5"
+                "source": "https://github.com/phpstan/phpstan/tree/1.5.6"
             },
             "funding": [
                 {
@@ -4462,7 +4462,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-04-14T12:20:26+00:00"
+            "time": "2022-04-15T11:13:37+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",