diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e422fff..ba1d512 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,55 +1,55 @@
 name: Build
 on:
-    push:
-        branches:
-            - master
-    pull_request:
-        branches:
-            - master
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 jobs:
-    build:
-        name: PHP ${{ matrix.php-versions }} ${{ matrix.composer-args }}
-        strategy:
-            fail-fast: false
-            matrix:
-                operating-system: [ubuntu-latest]
-                php-versions: ['7.4', '8.0', '8.1', '8.2']
-                composer-args: ['', '--prefer-lowest']
-        runs-on: ${{ matrix.operating-system }}
-        steps:
-            - name: Checkout
-              uses: actions/checkout@v3
-            - name: Setup PHP
-              uses: shivammathur/setup-php@2.25.1
-              with:
-                  php-version: ${{ matrix.php-versions }}
-                  extensions: mbstring
-                  coverage: pcov
-                  tools: cs2pr
-            - name: Setup problem matchers for PHPUnit
-              run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
-            - name: Get composer cache directory
-              id: composer-cache
-              run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-            - name: Cache dependencies
-              uses: actions/cache@v3
-              with:
-                  path: ${{ steps.composer-cache.outputs.dir }}
-                  key: php${{ matrix.php-versions }}-composer-${{ matrix.composer-args }}-${{ hashFiles('**/composer.json') }}
-                  restore-keys: php${{ matrix.php-versions }}-composer-${{ matrix.composer-args }}-
-            - name: Install Dependencies
-              run: |
-                  composer update --no-progress --no-suggest --prefer-stable --optimize-autoloader ${{ matrix.composer-args }}
-            - name: PHPStan
-              run: composer phpstan
-            - name: Code Style Check
-              env:
-                  PHP_CS_FIXER_IGNORE_ENV: true
-              run: composer style-check -- --format=checkstyle | cs2pr
-            - name: Test
-              run: composer test-with-coverage
-            - name: Upload Coverage
-              uses: codecov/codecov-action@v3
-              with:
-                files: ./clover.xml
-                verbose: true
+  build:
+    name: PHP ${{ matrix.php-versions }} ${{ matrix.composer-args }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-latest]
+        php-versions: ["8.0", "8.1", "8.2", "8.3"]
+        composer-args: ["", "--prefer-lowest"]
+    runs-on: ${{ matrix.operating-system }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup PHP
+        uses: shivammathur/setup-php@2.30.2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          extensions: mbstring
+          coverage: pcov
+          tools: cs2pr
+      - name: Setup problem matchers for PHPUnit
+        run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+      - name: Get composer cache directory
+        id: composer-cache
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: php${{ matrix.php-versions }}-composer-${{ matrix.composer-args }}-${{ hashFiles('**/composer.json') }}
+          restore-keys: php${{ matrix.php-versions }}-composer-${{ matrix.composer-args }}-
+      - name: Install Dependencies
+        run: |
+          composer update --no-progress --no-suggest --prefer-stable --optimize-autoloader ${{ matrix.composer-args }}
+      - name: PHPStan
+        run: composer phpstan
+      - name: Code Style Check
+        env:
+          PHP_CS_FIXER_IGNORE_ENV: true
+        run: composer style-check -- --format=checkstyle | cs2pr
+      - name: Test
+        run: composer test-with-coverage
+      - name: Upload Coverage
+        uses: codecov/codecov-action@v3
+        with:
+          files: ./clover.xml
+          verbose: true
diff --git a/.gitignore b/.gitignore
index 4a3d63d..b5db36b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@
 .php_cs.cache
 .phpunit.result.cache
 .php-cs-fixer.cache
-/tests/Zend/_files
\ No newline at end of file
+/tests/Zend/_files
+.phpunit.cache
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 72ff6a6..93b701c 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     "license": "BSD-3-Clause",
     "require": {
         "ext-iconv": "*",
-        "php": "^7.4 || ~8.0.0 || ~8.1.0 || ~8.2.0",
+        "php": "~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0",
         "diablomedia/zendframework1-exception": "^1.0.0",
         "diablomedia/zendframework1-cache": "^1.0.0",
         "diablomedia/zendframework1-loader": "^1.0.0",
@@ -32,9 +32,9 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5.10",
-        "phpstan/phpstan": "1.10.15",
-        "friendsofphp/php-cs-fixer": "3.16.0",
+        "phpunit/phpunit": "^9.6.19 || ^10.5.18",
+        "phpstan/phpstan": "1.10.67",
+        "friendsofphp/php-cs-fixer": "3.53.0",
         "maglnet/composer-require-checker": "^3.0.0",
         "phpro/grumphp-shim": "^1.5.0"
     },
diff --git a/phpstan.neon b/phpstan.neon
index 1377bca..a7c9488 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -19,9 +19,6 @@ parameters:
         -
             message: '#Binary operation "-" between string and [\d] results in an error\.#'
             path: %currentWorkingDirectory%/src/Zend/Date.php
-        -
-            message: '#Binary operation "\+" between [\d]+ and string results in an error\.#'
-            path: %currentWorkingDirectory%/src/Zend/Date.php
         -
             message: '#Binary operation "-=" between string and [\d]+ results in an error\.#'
             path: %currentWorkingDirectory%/src/Zend/Date.php
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index d55ddf3..d97fc9c 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,13 +1,25 @@
 <?xml version="1.0"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" beStrictAboutTestsThatDoNotTestAnything="true" backupGlobals="true" stderr="true" colors="true" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
-  <coverage includeUncoveredFiles="true">
-    <include>
-      <directory suffix=".php">./src</directory>
-    </include>
-  </coverage>
+<phpunit 
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+  beStrictAboutTestsThatDoNotTestAnything="true" 
+  backupGlobals="true" 
+  stderr="true" 
+  colors="true" 
+  xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd" 
+  cacheDirectory=".phpunit.cache"
+  displayDetailsOnTestsThatTriggerDeprecations="true" 
+  displayDetailsOnTestsThatTriggerErrors="true" 
+  displayDetailsOnTestsThatTriggerNotices="true" 
+  displayDetailsOnTestsThatTriggerWarnings="true" 
+>
   <testsuites>
     <testsuite name="default">
       <directory>./tests</directory>
     </testsuite>
   </testsuites>
+  <source>
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </source>
 </phpunit>