diff --git a/test/tests/unit/Routing/Route/PrefixRouteTest.php b/test/tests/unit/Routing/Route/PrefixRouteTest.php
index ef47262..dd884e2 100644
--- a/test/tests/unit/Routing/Route/PrefixRouteTest.php
+++ b/test/tests/unit/Routing/Route/PrefixRouteTest.php
@@ -2,6 +2,7 @@
 
 namespace WellRESTed\Test\Unit\Routing\Route;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use WellRESTed\Routing\Route\MethodMap;
 use WellRESTed\Routing\Route\PrefixRoute;
 use WellRESTed\Routing\Route\RouteInterface;
@@ -9,6 +10,8 @@ use WellRESTed\Test\TestCase;
 
 class PrefixRouteTest extends TestCase
 {
+    use ProphecyTrait;
+    
     public function testTrimsAsteriskFromEndOfTarget()
     {
         $methodMap = $this->prophesize(MethodMap::class);
diff --git a/test/tests/unit/Routing/Route/RegexRouteTest.php b/test/tests/unit/Routing/Route/RegexRouteTest.php
index eede717..88410b2 100644
--- a/test/tests/unit/Routing/Route/RegexRouteTest.php
+++ b/test/tests/unit/Routing/Route/RegexRouteTest.php
@@ -2,8 +2,7 @@
 
 namespace WellRESTed\Test\Unit\Routing\Route;
 
-use PHPUnit\Framework\Error\Notice;
-use PHPUnit\Framework\Error\Warning;
+use Prophecy\PhpUnit\ProphecyTrait;
 use RuntimeException;
 use WellRESTed\Routing\Route\MethodMap;
 use WellRESTed\Routing\Route\RegexRoute;
@@ -12,6 +11,8 @@ use WellRESTed\Test\TestCase;
 
 class RegexRouteTest extends TestCase
 {
+    use ProphecyTrait;
+
     private $methodMap;
 
     public function setUp(): void
diff --git a/test/tests/unit/Routing/Route/RouteFactoryTest.php b/test/tests/unit/Routing/Route/RouteFactoryTest.php
index 1608eea..e7a18b2 100644
--- a/test/tests/unit/Routing/Route/RouteFactoryTest.php
+++ b/test/tests/unit/Routing/Route/RouteFactoryTest.php
@@ -2,6 +2,7 @@
 
 namespace WellRESTed\Test\Unit\Routing\Route;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use WellRESTed\Dispatching\DispatcherInterface;
 use WellRESTed\Routing\Route\RouteFactory;
 use WellRESTed\Routing\Route\RouteInterface;
@@ -9,6 +10,8 @@ use WellRESTed\Test\TestCase;
 
 class RouteFactoryTest extends TestCase
 {
+    use ProphecyTrait;
+
     private $dispatcher;
 
     public function setUp(): void
diff --git a/test/tests/unit/Routing/Route/RouteTest.php b/test/tests/unit/Routing/Route/RouteTest.php
index 2e6d338..993e411 100644
--- a/test/tests/unit/Routing/Route/RouteTest.php
+++ b/test/tests/unit/Routing/Route/RouteTest.php
@@ -3,6 +3,7 @@
 namespace WellRESTed\Test\Unit\Routing\Route;
 
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Psr\Http\Server\RequestHandlerInterface;
 use WellRESTed\Message\Response;
 use WellRESTed\Message\ServerRequest;
@@ -12,6 +13,8 @@ use WellRESTed\Test\TestCase;
 
 class RouteTest extends TestCase
 {
+    use ProphecyTrait;
+
     const TARGET = '/target';
 
     private $methodMap;
diff --git a/test/tests/unit/Routing/Route/StaticRouteTest.php b/test/tests/unit/Routing/Route/StaticRouteTest.php
index 1ff3654..6ca6067 100644
--- a/test/tests/unit/Routing/Route/StaticRouteTest.php
+++ b/test/tests/unit/Routing/Route/StaticRouteTest.php
@@ -2,6 +2,7 @@
 
 namespace WellRESTed\Test\Unit\Routing\Route;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use WellRESTed\Routing\Route\MethodMap;
 use WellRESTed\Routing\Route\RouteInterface;
 use WellRESTed\Routing\Route\StaticRoute;
@@ -9,6 +10,8 @@ use WellRESTed\Test\TestCase;
 
 class StaticRouteTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testReturnsStaticType()
     {
         $methodMap = $this->prophesize(MethodMap::class);
diff --git a/test/tests/unit/Routing/Route/TemplateRouteTest.php b/test/tests/unit/Routing/Route/TemplateRouteTest.php
index 7f11ba9..c480db2 100644
--- a/test/tests/unit/Routing/Route/TemplateRouteTest.php
+++ b/test/tests/unit/Routing/Route/TemplateRouteTest.php
@@ -2,6 +2,7 @@
 
 namespace WellRESTed\Test\Unit\Routing\Route;
 
+use Prophecy\PhpUnit\ProphecyTrait;
 use WellRESTed\Routing\Route\MethodMap;
 use WellRESTed\Routing\Route\RouteInterface;
 use WellRESTed\Routing\Route\TemplateRoute;
@@ -9,6 +10,8 @@ use WellRESTed\Test\TestCase;
 
 class TemplateRouteTest extends TestCase
 {
+    use ProphecyTrait;
+
     private $methodMap;
 
     public function setUp(): void
diff --git a/test/tests/unit/Routing/RouterTest.php b/test/tests/unit/Routing/RouterTest.php
index a484f51..2587c51 100644
--- a/test/tests/unit/Routing/RouterTest.php
+++ b/test/tests/unit/Routing/RouterTest.php
@@ -3,6 +3,7 @@
 namespace WellRESTed\Test\Unit\Routing;
 
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use WellRESTed\Dispatching\Dispatcher;
 use WellRESTed\Message\Response;
 use WellRESTed\Message\ServerRequest;
@@ -14,6 +15,8 @@ use WellRESTed\Test\TestCase;
 
 class RouterTest extends TestCase
 {
+    use ProphecyTrait;
+
     private $factory;
     private $request;
     private $response;
diff --git a/test/tests/unit/ServerTest.php b/test/tests/unit/ServerTest.php
index 4e209c9..7dabfc2 100644
--- a/test/tests/unit/ServerTest.php
+++ b/test/tests/unit/ServerTest.php
@@ -3,6 +3,7 @@
 namespace WellRESTed\Test\Unit;
 
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use WellRESTed\Dispatching\DispatcherInterface;
 use WellRESTed\Message\Response;
 use WellRESTed\Message\ServerRequest;
@@ -15,6 +16,8 @@ require_once __DIR__ . '/../../src/HeaderStack.php';
 
 class ServerTest extends TestCase
 {
+    use ProphecyTrait;
+
     private $transmitter;
     /** @var Server */
     private $server;
diff --git a/test/tests/unit/Transmission/TransmitterTest.php b/test/tests/unit/Transmission/TransmitterTest.php
index 553b7ca..8f7ae47 100644
--- a/test/tests/unit/Transmission/TransmitterTest.php
+++ b/test/tests/unit/Transmission/TransmitterTest.php
@@ -3,6 +3,7 @@
 namespace WellRESTed\Test\Unit\Transmission;
 
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Psr\Http\Message\StreamInterface;
 use WellRESTed\Message\Response;
 use WellRESTed\Message\ServerRequest;
@@ -14,6 +15,8 @@ require_once __DIR__ . "/../../../src/HeaderStack.php";
 
 class TransmitterTest extends TestCase
 {
+    use ProphecyTrait;
+
     private $request;
     private $response;
     private $body;