diff --git a/.github/workflows/phpci.yaml b/.github/workflows/phpci.yaml
index 4a051ed..4b103ed 100644
--- a/.github/workflows/phpci.yaml
+++ b/.github/workflows/phpci.yaml
@@ -11,8 +11,6 @@ jobs:
     strategy:
       matrix:
         php-versions:
-          - '8.3'
-          - '8.4'
           - '8.5'
 
     steps:
diff --git a/composer.json b/composer.json
index 8affb6a..5e6d2d2 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,9 @@
     "name": "hexlet/pairs",
     "description": "Pairs implementation",
     "license": "MIT",
-    "keywords": ["pairs"],
+    "keywords": [
+        "pairs"
+    ],
     "authors": [
         {
             "name": "Kirill Mokevnin",
@@ -10,7 +12,7 @@
         }
     ],
     "require": {
-        "php": ">=8.3"
+        "php": ">=8.5"
     },
     "autoload": {
         "files": [
@@ -18,7 +20,7 @@
         ]
     },
     "require-dev": {
-        "phpunit/phpunit": "^12",
-        "squizlabs/php_codesniffer": "*"
+        "phpunit/phpunit": "^13.3",
+        "squizlabs/php_codesniffer": "^4.0"
     }
 }
diff --git a/phpunit.xml b/phpunit.xml
index fdc0c27..d18e2b8 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/12.0/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/13.3/phpunit.xsd"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     bootstrap="vendor/autoload.php"
     backupGlobals="false"
     colors="true"
     processIsolation="false"
     stopOnFailure="true"
-    cacheResult="false"
+    recordTestRunHistory="false"
     backupStaticProperties="false"
     testdox="true"
     stopOnDefect="true"