diff --git a/.gitignore b/.gitignore
index c422267..83a0b0f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,2 @@
-composer.phar
+.phpunit.result.cache
 /vendor/
-
-# Commit your application's lock file http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file
-# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
-# composer.lock
diff --git a/composer.json b/composer.json
index d6ce4e4..fe59f98 100644
--- a/composer.json
+++ b/composer.json
@@ -7,12 +7,12 @@
   ],
   "license": "MIT",
   "require-dev": {
-    "phpunit/phpunit": "7.0.2",
-    "squizlabs/php_codesniffer": "3.2.3",
-    "php-coveralls/php-coveralls": "~2.1.0"
+    "phpunit/phpunit": "^9.5.4",
+    "squizlabs/php_codesniffer": "^3.5.8",
+    "php-coveralls/php-coveralls": "^2.4.3"
   },
   "require": {
-    "phpugph/components": "~2.2.0"
+    "phpugph/components": "^1.0.0"
   },
   "autoload": {
     "psr-4": {
diff --git a/phpunit.xml b/phpunit.xml
index 31b3d8d..f6e8621 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false"
-         syntaxCheck="false"
-         bootstrap="test/bootstrap.php"
+<phpunit
+  backupGlobals="false"
+  backupStaticAttributes="false"
+  colors="true"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  processIsolation="false"
+  stopOnFailure="false"
+  bootstrap="test/bootstrap.php"
 >
   <testsuites>
     <testsuite name="Handlebars Test Suite">
@@ -22,14 +21,14 @@
     </testsuite>
   </testsuites>
 
-  <filter>
-    <whitelist>
+  <coverage>
+    <include>
       <directory suffix=".php">./src</directory>
-      <exclude>
-        <directory>./vendor</directory>
-        <directory>./test</directory>
-        <file>src/helpers.php</file>
-      </exclude>
-    </whitelist>
-  </filter>
+    </include>
+    <exclude>
+      <directory>./vendor</directory>
+      <directory>./test</directory>
+      <file>src/helpers.php</file>
+    </exclude>
+  </coverage>
 </phpunit>
diff --git a/test/HandlebarsCompiler.php b/test/HandlebarsCompiler.php
index 6748ffe..795b15f 100644
--- a/test/HandlebarsCompiler.php
+++ b/test/HandlebarsCompiler.php
@@ -41,7 +41,7 @@ class Handlebars_HandlebarsCompiler_Test extends TestCase
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
-  protected function setUp()
+  protected function setUp(): void
   {
     $handler = new HandlebarsHandler;
     $this->source = file_get_contents(__DIR__.'/assets/tokenizer.html');
@@ -55,7 +55,7 @@ protected function setUp()
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
-  protected function tearDown()
+  protected function tearDown(): void
   {
   }
 
diff --git a/test/HandlebarsData.php b/test/HandlebarsData.php
index 71df1a2..a34ba25 100644
--- a/test/HandlebarsData.php
+++ b/test/HandlebarsData.php
@@ -24,7 +24,7 @@ class Handlebars_HandlebarsData_Test extends TestCase
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
-  protected function setUp()
+  protected function setUp(): void
   {
     $this->object = new HandlebarsData([
       'product_id' => 123,
@@ -41,7 +41,7 @@ protected function setUp()
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
-  protected function tearDown()
+  protected function tearDown(): void
   {
   }
 
diff --git a/test/HandlebarsException.php b/test/HandlebarsException.php
index 61abf8a..a2a31e5 100644
--- a/test/HandlebarsException.php
+++ b/test/HandlebarsException.php
@@ -24,7 +24,7 @@ class Handlebars_HandlebarsException_Test extends TestCase
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
-  protected function setUp()
+  protected function setUp(): void
   {
     $this->object = new HandlebarsException;
   }
@@ -33,7 +33,7 @@ protected function setUp()
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
-  protected function tearDown()
+  protected function tearDown(): void
   {
   }
 
diff --git a/test/HandlebarsHandler.php b/test/HandlebarsHandler.php
index cc8aa2e..240e547 100644
--- a/test/HandlebarsHandler.php
+++ b/test/HandlebarsHandler.php
@@ -26,7 +26,7 @@ class Handlebars_HandlebarsHandler_Test extends TestCase
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
-  protected function setUp()
+  protected function setUp(): void
   {
     $this->object = new HandlebarsHandler;
   }
@@ -35,7 +35,7 @@ protected function setUp()
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
-  protected function tearDown()
+  protected function tearDown(): void
   {
   }
 
diff --git a/test/HandlebarsRuntime.php b/test/HandlebarsRuntime.php
index 3f3b30a..b1d6d96 100644
--- a/test/HandlebarsRuntime.php
+++ b/test/HandlebarsRuntime.php
@@ -19,7 +19,7 @@ class Handlebars_HandlebarsRuntime_Test extends TestCase
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
-  protected function setUp()
+  protected function setUp(): void
   {
     //reset the helpers and partials after every test
     HandlebarsHandler::i()->reset();
@@ -29,7 +29,7 @@ protected function setUp()
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
-  protected function tearDown()
+  protected function tearDown(): void
   {
   }
 
diff --git a/test/HandlebarsTokenizer.php b/test/HandlebarsTokenizer.php
index d746a0d..ece87db 100644
--- a/test/HandlebarsTokenizer.php
+++ b/test/HandlebarsTokenizer.php
@@ -29,7 +29,7 @@ class Handlebars_HandlebarsTokenizer_Test extends TestCase
    * Sets up the fixture, for example, opens a network connection.
    * This method is called before a test is executed.
    */
-  protected function setUp()
+  protected function setUp(): void
   {
     $this->source = file_get_contents(__DIR__.'/assets/tokenizer.html');
     $this->object = new HandlebarsTokenizer($this->source);
@@ -39,7 +39,7 @@ protected function setUp()
    * Tears down the fixture, for example, closes a network connection.
    * This method is called after a test is executed.
    */
-  protected function tearDown()
+  protected function tearDown(): void
   {
   }