diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8596b40..70e3236 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,7 +8,7 @@ jobs:
   analyse:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
         with:
           php-version: '8.1'
@@ -39,7 +39,7 @@ jobs:
           - php-version: '8.2'
           - php-version: '8.3'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
diff --git a/composer.json b/composer.json
index cdf4c5b..88f4ec4 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": "^7.0 || ^8.0",
-        "phpunit/phpunit": "^6.5.14 || ^7.5.20 || ^8.0 || ^9.0 || ^10.0"
+        "phpunit/phpunit": "^6.5.14 || ^7.5.20 || ^8.0 || ^9.0 || ^10.0 || ^11.0.1"
     },
     "autoload": {
         "psr-4": {
diff --git a/dev-tools/composer.json b/dev-tools/composer.json
index 1c2f9c1..37ad8e7 100644
--- a/dev-tools/composer.json
+++ b/dev-tools/composer.json
@@ -6,7 +6,7 @@
         "ergebnis/composer-normalize": "*",
         "maglnet/composer-require-checker": "^3.8",
         "mi-schi/phpmd-extension": "^4.3",
-        "php-cs-fixer/shim": "^3.14.4",
+        "php-cs-fixer/shim": "^3.49.0",
         "phpmd/phpmd": "^2.13"
     },
     "config": {
diff --git a/src/Constraint/IsIdenticalString.php b/src/Constraint/IsIdenticalString.php
index e5298e9..381e6b3 100644
--- a/src/Constraint/IsIdenticalString.php
+++ b/src/Constraint/IsIdenticalString.php
@@ -11,11 +11,13 @@
 
 namespace PhpCsFixer\PhpunitConstraintIsIdenticalString\Constraint;
 
-if (version_compare(\PHPUnit\Runner\Version::id(), '7.0.0') < 0) {
+use PHPUnit\Runner\Version;
+
+if (version_compare(Version::id(), '7.0.0') < 0) {
     class_alias(IsIdenticalStringForV5::class, IsIdenticalString::class);
-} elseif (version_compare(\PHPUnit\Runner\Version::id(), '8.0.0') < 0) {
+} elseif (version_compare(Version::id(), '8.0.0') < 0) {
     class_alias(IsIdenticalStringForV7::class, IsIdenticalString::class);
-} elseif (version_compare(\PHPUnit\Runner\Version::id(), '9.0.0') < 0) {
+} elseif (version_compare(Version::id(), '9.0.0') < 0) {
     class_alias(IsIdenticalStringForV8::class, IsIdenticalString::class);
 } else {
     class_alias(IsIdenticalStringForV9::class, IsIdenticalString::class);