diff --git a/composer.lock b/composer.lock
index a53d8bd..5c2e42b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -285,16 +285,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.5.7",
+            "version": "1.6.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "7fb7e2e1e9f3d59a26a413b2d3d5e47f0edb75ac"
+                "reference": "e4cd0c2dd97809fcfdcd1f367ccf0be86c235168"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/7fb7e2e1e9f3d59a26a413b2d3d5e47f0edb75ac",
-                "reference": "7fb7e2e1e9f3d59a26a413b2d3d5e47f0edb75ac",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e4cd0c2dd97809fcfdcd1f367ccf0be86c235168",
+                "reference": "e4cd0c2dd97809fcfdcd1f367ccf0be86c235168",
                 "shasum": ""
             },
             "require": {
@@ -320,7 +320,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/1.5.7"
+                "source": "https://github.com/phpstan/phpstan/tree/1.6.4"
             },
             "funding": [
                 {
@@ -340,7 +340,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-04-20T12:20:27+00:00"
+            "time": "2022-05-02T16:02:21+00:00"
         },
         {
             "name": "slevomat/coding-standard",