diff --git a/CLAUDE.md b/CLAUDE.md
index ba2f186a252..822d0648eed 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -38,7 +38,7 @@ vendor/bin/phpunit
 ```
 
 PHPStan extras enabled in `phpstan.neon`:
-- `type-perfect`: `no_mixed`, `null_over_false`, `narrow_param`, `narrow_return` — return/param types must be narrow; prefer `null` over `false` for "no result".
+- `type-coverage` (ships the former `type-perfect` rules): `no_mixed`, `null_over_false`, `narrow_param`, `narrow_return` — return/param types must be narrow; prefer `null` over `false` for "no result".
 - `unused-public`: public methods/properties/constants must be used somewhere. If you add a new public API, expect to use it or mark it accordingly.
 - `symplify/phpstan-rules` + `rector-rules`: forbids `var_dump`, `dd`, `property_exists`, `class_exists`, `@` error suppression, dynamic names, etc., outside the narrowly listed exceptions in `phpstan.neon`. Do not add new exceptions casually — fix the code.
 
diff --git a/composer.json b/composer.json
index 0fc3d46ab00..5447cd70a75 100644
--- a/composer.json
+++ b/composer.json
@@ -52,13 +52,13 @@
         "rector/jack": "^0.5",
         "rector/release-notes-generator": "^0.5.1",
         "rector/swiss-knife": "^2.4.1",
-        "rector/type-perfect": "^2.1.2",
         "shipmonk/composer-dependency-analyser": "^1.8",
         "symplify/easy-coding-standard": "^13.2.13",
         "symplify/phpstan-extensions": "^12.0.2",
         "symplify/phpstan-rules": "^14.12",
         "symplify/vendor-patches": "^11.5",
         "tomasvotruba/class-leak": "^2.1",
+        "tomasvotruba/type-coverage": "^2.3",
         "tomasvotruba/unused-public": "^2.2",
         "tracy/tracy": "^2.12"
     },
diff --git a/phpstan.neon b/phpstan.neon
index 7c772600d34..071ff24a49b 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -53,7 +53,7 @@ parameters:
         - '*tests/*/Source/*'
         - '*tests/*/Source*'
 
-    # https://github.com/rectorphp/type-perfect/
+    # see https://github.com/TomasVotruba/type-coverage
     type_perfect:
         no_mixed: true
         null_over_false: true