diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 94a2c48..e7c5add 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - 1.x
-      - 1.x-release-workflow
+      - 2.x
 
 permissions:
   contents: write
diff --git a/composer.json b/composer.json
index bec3e41..15bbc87 100644
--- a/composer.json
+++ b/composer.json
@@ -5,8 +5,8 @@
   "license": "MIT",
   "require": {
     "composer/installers": "^1.0 || ^2.0",
-    "php": ">=7.4.0",
-    "timber/timber": "^1.19"
+    "php": "^7.4 || ^8.0",
+    "timber/timber": "^2.0"
   },
   "require-dev": {
     "wpackagist-plugin/advanced-custom-fields": "5.*",
diff --git a/lib/Timmy.php b/lib/Timmy.php
index 8672a17..08f98ab 100644
--- a/lib/Timmy.php
+++ b/lib/Timmy.php
@@ -3,8 +3,6 @@
 namespace Timmy;
 
 use Timber;
-use Timber\Twig_Filter;
-use Timber\Twig_Function;
 use WP_Post;
 
 /**
@@ -46,7 +44,8 @@ public static function init() {
 		add_action( 'after_setup_theme', [ $self, 'after_setup_theme' ] );
 
 		// Add filters and functions to integrate Timmy into Timber and Twig.
-		add_filter( 'timber/twig', [ $self, 'filter_twig' ] );
+		add_filter('timber/twig/filters', [ $self, 'add_filters' ]);
+		add_filter('timber/twig/functions', [ $self, 'add_functions' ]);
 
 		add_filter( 'timmy/resize/ignore', array( __CLASS__, 'ignore_unallowed_files' ), 10, 2 );
 	}
@@ -169,32 +168,43 @@ public static function get_image( $attachment, $size ) {
 	}
 
 	/**
-	 * Set filters to use Timmy filters and functions in Twig.
+	 * Adds Twig filters.
 	 *
-	 * @param \Twig\Environment $twig The Twig Environment instance.
+	 * @param array $filters
 	 *
-	 * @return \Twig\Environment $twig
+	 * @return array
 	 */
-	public function filter_twig( $twig ) {
-		$twig->addFilter( new Twig_Filter( 'get_timber_image', 'get_timber_image' ) );
-		$twig->addFilter( new Twig_Filter( 'get_timber_image_src', 'get_timber_image_src' ) );
-		$twig->addFilter( new Twig_Filter( 'get_timber_image_srcset', 'get_timber_image_srcset' ) );
-		$twig->addFilter( new Twig_Filter( 'get_timber_image_responsive', 'get_timber_image_responsive' ) );
-		$twig->addFilter( new Twig_Filter( 'get_timber_image_responsive_src', 'get_timber_image_responsive_src' ) );
-		$twig->addFilter( new Twig_Filter( 'get_timber_picture_responsive', 'get_timber_picture_responsive' ) );
-
-		$twig->addFilter( new Twig_Filter( 'lazy', 'make_timber_image_lazy' ) );
+	public function add_filters( array $filters ): array {
+		$filters['get_timber_image']                = [ 'callable' => 'get_timber_image' ];
+		$filters['get_timber_image_src']            = [ 'callable' => 'get_timber_image_src' ];
+		$filters['get_timber_image_srcset']         = [ 'callable' => 'get_timber_image_srcset' ];
+		$filters['get_timber_image_responsive']     = [ 'callable' => 'get_timber_image_responsive' ];
+		$filters['get_timber_image_responsive_src'] = [ 'callable' => 'get_timber_image_responsive_src' ];
+		$filters['get_timber_picture_responsive']   = [ 'callable' => 'get_timber_picture_responsive' ];
+		$filters['lazy']                            = [ 'callable' => 'make_timber_image_lazy' ];
+
+		return $filters;
+	}
 
-		$twig->addFunction( new Twig_Function( 'get_timmy_image', [ '\Timmy\Timmy', 'get_image' ] ) );
+	/**
+	 * Adds Twig functions.
+	 *
+	 * @param array $functions
+	 *
+	 * @return array
+	 */
+	public function add_functions( array $functions ): array {
+		$functions['get_timmy_image']                 = [ 'callable' => [ '\Timmy\Timmy', 'get_image' ] ];
 
-		$twig->addFunction( new Twig_Function( 'get_timber_image_responsive_acf', 'get_timber_image_responsive_acf' ) );
+		// ACF.
+		$functions['get_timber_image_responsive_acf'] = [ 'callable' => 'get_timber_image_responsive_acf' ];
 
 		// Image texts.
-		$twig->addFunction( new Twig_Function( 'get_timber_image_alt', 'get_timber_image_alt' ) );
-		$twig->addFunction( new Twig_Function( 'get_timber_image_caption', 'get_timber_image_caption' ) );
-		$twig->addFunction( new Twig_Function( 'get_timber_image_description', 'get_timber_image_description' ) );
+		$functions['get_timber_image_alt']         = [ 'callable' => 'get_timber_image_alt' ];
+		$functions['get_timber_image_caption']     = [ 'callable' => 'get_timber_image_caption' ];
+		$functions['get_timber_image_description'] = [ 'callable' => 'get_timber_image_description' ];
 
-		return $twig;
+		return $functions;
 	}
 
 	/**
@@ -686,10 +696,10 @@ public function filter_wp_prepare_attachment_for_js( $response, $attachment, $me
 	 */
 	public static function get_timber_image( $timber_image ) {
 		if ( is_numeric( $timber_image ) ) {
-			$timber_image = new Timber\Image( $timber_image );
+			$timber_image = Timber::get_image( $timber_image );
 		} elseif ( is_array( $timber_image ) && isset( $timber_image['ID'] ) ) {
 			// Convert an ACF image array into a Timber image.
-			$timber_image = new Timber\Image( $timber_image['ID'] );
+			$timber_image = Timber::get_image( $timber_image['ID'] );
 		}
 
 		// Check if non-empty TimberImage was found before returning it.
diff --git a/tests/TimmyUnitTestCase.php b/tests/TimmyUnitTestCase.php
index a689ee8..a0fd71b 100644
--- a/tests/TimmyUnitTestCase.php
+++ b/tests/TimmyUnitTestCase.php
@@ -1,7 +1,7 @@
 <?php
 
 use Timber\Image;
-use Timber\Post;
+use Timber\Timber;
 use Yoast\WPTestUtils\WPIntegration\TestCase;
 
 /**
@@ -148,7 +148,7 @@ public function create_image( $args = [] ) {
 			$this->set_description( $attachment_id, $args['description'] );
 		}
 
-		return new Image( $attachment_id );
+		return Timber::get_image( $attachment_id );
 	}
 
 	/**
@@ -160,7 +160,7 @@ public function create_post_with_image() {
 
 		set_post_thumbnail( $post_id, $attachment_id );
 
-		$post = new Post( $post_id );
+		$post = Timber::get_post( $post_id );
 
 		return $post;
 	}
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 31de165..a972bf0 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -21,7 +21,12 @@
 function _manually_load_plugin() {
 	require dirname( __FILE__ ) . '/../vendor/autoload.php';
 
-	new Timber\Timber();
+	if (version_compare(Timber\Timber::$version, '2.0.0', '>=')) {
+	    Timber\Timber::init();
+	} else {
+		new Timber\Timber();
+	}
+
 	Timmy::init();
 
 	require dirname( __FILE__ ) . '/../wp-content/plugins/advanced-custom-fields/acf.php';
diff --git a/tests/test-image-texts.php b/tests/test-image-texts.php
index cfd0bf6..8747e52 100644
--- a/tests/test-image-texts.php
+++ b/tests/test-image-texts.php
@@ -18,7 +18,7 @@ public function test_get_timber_image_texts() {
 		$this->set_description( $attachment->ID, $description );
 
 		// Reload attachment to get updated values.
-		$attachment = new Image( $attachment->ID );
+		$attachment = Timber::get_image( $attachment->ID );
 
 		$result = get_timber_image_texts( $attachment, 'large' );
 
diff --git a/tests/test-timmy.php b/tests/test-timmy.php
index 0f542cd..6df2790 100644
--- a/tests/test-timmy.php
+++ b/tests/test-timmy.php
@@ -100,11 +100,10 @@ function test_attached_image_with_missing_post() {
 	}
 
 	public function test_timmy_ignores_pdf() {
-		$attachment = $this->create_image( [ 'file' => 'example.pdf' ] );
-		$result     = image_downsize( $attachment->ID );
+		$attachment_id = $this->create_image_attachment( 0, 'example.pdf' );
+		$result = image_downsize( $attachment_id );
 
-		$image = false;
-		$this->assertEquals( $image, $result );
+		$this->assertFalse( $result );
 	}
 
 	public function test_timmy_ignores_svg() {
@@ -121,12 +120,10 @@ public function test_timmy_ignores_svg() {
 	}
 
 	public function test_timmy_ignores_video() {
-		$attachment = $this->create_image( [ 'file' => 'video.mp4' ] );
-		$result     = image_downsize( $attachment->ID );
+		$attachment_id = $this->create_image_attachment( 0, 'video.mp4' );
+		$result = image_downsize( $attachment_id );
 
-		$image = false;
-
-		$this->assertEquals( $image, $result );
+		$this->assertFalse( $result );
 	}
 
 	public function test_timmy_ignores_svg_when_generating_metadata() {
@@ -146,9 +143,9 @@ public function test_timmy_ignores_gif_when_generating_metadata() {
 	}
 
 	public function test_timmy_ignores_video_when_generating_metadata() {
-		$attachment = $this->create_image( [ 'file' => 'video.mp4' ] );
-		$file_src   = get_attached_file( $attachment->ID );
-		$meta       = wp_generate_attachment_metadata( $attachment->ID, $file_src );
+		$attachment_id = $this->create_image_attachment( 0, 'video.mp4' );
+		$file_src   = get_attached_file( $attachment_id );
+		$meta       = wp_generate_attachment_metadata( $attachment_id, $file_src );
 
 		$this->assertArrayNotHasKey( 'sizes', $meta );
 	}