diff --git a/composer.json b/composer.json
index 03205de0..aa9795c3 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
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     "phpmd/phpmd": "^2.9",
     "phpstan/phpstan": "^0.12.64",
-    "rector/rector-prefixed": "^0.9.31",
+    "rector/rector-prefixed": "^0.10.4",
     "simpletest/simpletest": "^1.2",
     "staabm/annotate-pull-request-from-checkstyle": "^1.4",
     "vimeo/psalm": "^4.6"
diff --git a/composer.lock b/composer.lock
index d1cffbf4..de820283 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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     ],
-    "content-hash": "6e02c8707ebddfbb84409255720e26ca",
+    "content-hash": "42a467d0e9f98a9df351f23d50c00608",
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             "name": "adodb/adodb-php",
@@ -3669,16 +3669,16 @@
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-            "version": "0.12.81",
+            "version": "0.12.83",
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                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "0dd5b0ebeff568f7000022ea5f04aa86ad3124b8"
+                "reference": "4a967cec6efb46b500dd6d768657336a3ffe699f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/0dd5b0ebeff568f7000022ea5f04aa86ad3124b8",
-                "reference": "0dd5b0ebeff568f7000022ea5f04aa86ad3124b8",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/4a967cec6efb46b500dd6d768657336a3ffe699f",
+                "reference": "4a967cec6efb46b500dd6d768657336a3ffe699f",
                 "shasum": ""
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@@ -3709,7 +3709,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.81"
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.83"
             },
             "funding": [
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@@ -3725,7 +3725,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-03-08T22:03:02+00:00"
+            "time": "2021-04-03T15:35:45+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -4250,35 +4250,40 @@
         },
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             "name": "rector/rector-prefixed",
-            "version": "0.9.31",
+            "version": "0.10.4",
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                 "type": "git",
                 "url": "https://github.com/rectorphp/rector-prefixed.git",
-                "reference": "cff116f7c19bf898c2d76751c8f01debb3c9c13f"
+                "reference": "d308686e5638c3a3069886b8ed4041a18b47d9d5"
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             "dist": {
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-                "url": "https://api.github.com/repos/rectorphp/rector-prefixed/zipball/cff116f7c19bf898c2d76751c8f01debb3c9c13f",
-                "reference": "cff116f7c19bf898c2d76751c8f01debb3c9c13f",
+                "url": "https://api.github.com/repos/rectorphp/rector-prefixed/zipball/d308686e5638c3a3069886b8ed4041a18b47d9d5",
+                "reference": "d308686e5638c3a3069886b8ed4041a18b47d9d5",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.3|^8.0",
-                "phpstan/phpstan": "^0.12.64"
+                "php": "^7.1|^8.0",
+                "phpstan/phpstan": "^0.12.82"
             },
             "bin": [
                 "bin/rector"
             ],
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "0.10-dev"
+                }
+            },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
-            "description": "Prefixed scoped version of rector/rector package",
+            "description": "Prefixed and PHP 7.1 downgraded version of rector/rector",
             "support": {
-                "source": "https://github.com/rectorphp/rector-prefixed/tree/0.9.31"
+                "source": "https://github.com/rectorphp/rector-prefixed/tree/0.10.4"
             },
-            "time": "2021-02-22T12:37:56+00:00"
+            "time": "2021-04-09T16:41:35+00:00"
         },
         {
             "name": "sebastian/cli-parser",