diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c24d1004..7344b3c52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+### 9.1.6 <small>(2024-07-21)</small>
+
+#### Compatibility
+
+* Ensuring compatibility with future PHP versions.
+
+--------------------------------------------------------
+
 ### 9.1.5 <small>(2023-11-24)</small>
 
 #### Bugfixes
diff --git a/src/mako/Mako.php b/src/mako/Mako.php
index 5c8721205..ab2b6b416 100644
--- a/src/mako/Mako.php
+++ b/src/mako/Mako.php
@@ -17,7 +17,7 @@ class Mako
 	 *
 	 * @var string
 	 */
-	public const VERSION = '9.1.5';
+	public const VERSION = '9.1.6';
 
 	/**
 	 * Mako major version.
@@ -38,5 +38,5 @@ class Mako
 	 *
 	 * @var int
 	 */
-	public const VERSION_PATCH = 5;
+	public const VERSION_PATCH = 6;
 }
diff --git a/src/mako/error/handlers/cli/DevelopmentHandler.php b/src/mako/error/handlers/cli/DevelopmentHandler.php
index e2e8aae4c..59230ebca 100644
--- a/src/mako/error/handlers/cli/DevelopmentHandler.php
+++ b/src/mako/error/handlers/cli/DevelopmentHandler.php
@@ -64,7 +64,6 @@ protected function determineExceptionType(Throwable $exception): string
 				E_PARSE             => 'Parse Error',
 				E_COMPILE_ERROR     => 'Compile Error',
 				E_COMPILE_WARNING   => 'Compile Warning',
-				E_STRICT            => 'Strict Mode Error',
 				E_NOTICE            => 'Notice',
 				E_WARNING           => 'Warning',
 				E_RECOVERABLE_ERROR => 'Recoverable Error',
diff --git a/src/mako/http/Request.php b/src/mako/http/Request.php
index 17f0cacff..cbdefba9f 100644
--- a/src/mako/http/Request.php
+++ b/src/mako/http/Request.php
@@ -38,7 +38,6 @@
 use function stripos;
 use function strlen;
 use function strpos;
-use function strtok;
 use function strtoupper;
 
 /**
@@ -342,7 +341,7 @@ public function getContentType(): string
 	{
 		if($this->contentType === null)
 		{
-			$this->contentType = rtrim(strtok((string) $this->headers->get('content-type'), ';'));
+			$this->contentType = rtrim(explode(';', (string) $this->headers->get('content-type'))[0]);
 		}
 
 		return $this->contentType;
diff --git a/src/mako/utility/UUID.php b/src/mako/utility/UUID.php
index e840a7cdd..5148992e1 100644
--- a/src/mako/utility/UUID.php
+++ b/src/mako/utility/UUID.php
@@ -13,14 +13,13 @@
 use function chr;
 use function dechex;
 use function explode;
+use function hash;
 use function hex2bin;
 use function hexdec;
-use function md5;
 use function microtime;
 use function ord;
 use function preg_match;
 use function random_bytes;
-use function sha1;
 use function sprintf;
 use function str_replace;
 use function str_split;
@@ -131,7 +130,7 @@ public static function toHexadecimal(string $bytes): string
 	 */
 	public static function v3(string $namespace, string $name): string
 	{
-		$hash = md5(static::toBinary($namespace) . $name);
+		$hash = hash('md5', static::toBinary($namespace) . $name);
 
 		return sprintf
 		(
@@ -169,7 +168,7 @@ public static function v4(): string
 	 */
 	public static function v5(string $namespace, string $name): string
 	{
-		$hash = sha1(static::toBinary($namespace) . $name);
+		$hash = hash('sha1', static::toBinary($namespace) . $name);
 
 		return sprintf
 		(
diff --git a/src/mako/view/compilers/Template.php b/src/mako/view/compilers/Template.php
index 3462cf098..7eb2b4c95 100644
--- a/src/mako/view/compilers/Template.php
+++ b/src/mako/view/compilers/Template.php
@@ -9,8 +9,8 @@
 
 use mako\file\FileSystem;
 
+use function hash;
 use function ltrim;
-use function md5;
 use function preg_match;
 use function preg_replace;
 use function preg_replace_callback;
@@ -302,6 +302,6 @@ public function compile(): void
 
 		// Store compiled template
 
-		$this->fileSystem->put($this->cachePath . '/' . md5($this->template) . '.php', trim($contents));
+		$this->fileSystem->put($this->cachePath . '/' . hash('md5', $this->template) . '.php', trim($contents));
 	}
 }
diff --git a/src/mako/view/renderers/Template.php b/src/mako/view/renderers/Template.php
index 33aadda32..2af91a0d8 100644
--- a/src/mako/view/renderers/Template.php
+++ b/src/mako/view/renderers/Template.php
@@ -13,7 +13,7 @@
 use function array_merge;
 use function array_pop;
 use function current;
-use function md5;
+use function hash;
 use function ob_get_clean;
 use function ob_start;
 use function str_replace;
@@ -56,7 +56,7 @@ public function __construct(
 	 */
 	protected function getCompiledPath(string $view): string
 	{
-		return "{$this->cachePath}/" . md5($view) . '.php';
+		return "{$this->cachePath}/" . hash('md5', $view) . '.php';
 	}
 
 	/**
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 095e87510..e75e2ca63 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,6 +1,6 @@
 <?php
 
-error_reporting(E_ALL | E_STRICT);
+error_reporting(E_ALL);
 
 date_default_timezone_set('UTC');
 
diff --git a/tests/unit/syringe/ContainerTest.php b/tests/unit/syringe/ContainerTest.php
index 5f4f93cf7..bfe6b52fb 100755
--- a/tests/unit/syringe/ContainerTest.php
+++ b/tests/unit/syringe/ContainerTest.php
@@ -380,7 +380,7 @@ public function testHasInstanceOf(): void
 
 		$container->registerSingleton([Bar::class, 'bar'], function ()
 		{
-			return new Bar(uniqid(), uniqid());
+			return new Bar(bin2hex(random_bytes(16)), bin2hex(random_bytes(16)));
 		});
 
 		$this->assertFalse($container->hasInstanceOf(Bar::class));
@@ -401,7 +401,7 @@ public function testRegisterSingleton(): void
 
 		$container->registerSingleton([Bar::class, 'bar'], function ()
 		{
-			return new Bar(uniqid(), uniqid());
+			return new Bar(bin2hex(random_bytes(16)), bin2hex(random_bytes(16)));
 		});
 
 		$this->assertEquals($container->get('bar'), $container->get('bar'));
diff --git a/tests/unit/view/compilers/TemplateTest.php b/tests/unit/view/compilers/TemplateTest.php
index f840578fe..d855683ee 100644
--- a/tests/unit/view/compilers/TemplateTest.php
+++ b/tests/unit/view/compilers/TemplateTest.php
@@ -31,7 +31,7 @@ public function getFileSystem($template, $compiled)
 
 		$fileSystem->shouldReceive('get')->with($this->templateName)->once()->andReturn($template);
 
-		$fileSystem->shouldReceive('put')->with($this->cachePath . '/' . md5($this->templateName) . '.php', $compiled);
+		$fileSystem->shouldReceive('put')->with($this->cachePath . '/' . hash('md5', $this->templateName) . '.php', $compiled);
 
 		return $fileSystem;
 	}