diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4691fb9..5d35156 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## Added
+
+- Support discovering PSR-17 factories of `slim/psr7` package
+
 ## 1.12.0 - 2020-09-22
 
 - Support discovering HttpClient of `php-http/guzzle7-adapter` https://github.com/php-http/discovery/pull/189
diff --git a/src/Strategy/CommonPsr17ClassesStrategy.php b/src/Strategy/CommonPsr17ClassesStrategy.php
index 2b7f845..fc26778 100644
--- a/src/Strategy/CommonPsr17ClassesStrategy.php
+++ b/src/Strategy/CommonPsr17ClassesStrategy.php
@@ -29,6 +29,7 @@ final class CommonPsr17ClassesStrategy implements DiscoveryStrategy
             'Http\Factory\Guzzle\RequestFactory',
             'Http\Factory\Slim\RequestFactory',
             'Laminas\Diactoros\RequestFactory',
+            'Slim\Psr7\Factory\RequestFactory',
         ],
         ResponseFactoryInterface::class => [
             'Phalcon\Http\Message\ResponseFactory',
@@ -39,6 +40,7 @@ final class CommonPsr17ClassesStrategy implements DiscoveryStrategy
             'Http\Factory\Guzzle\ResponseFactory',
             'Http\Factory\Slim\ResponseFactory',
             'Laminas\Diactoros\ResponseFactory',
+            'Slim\Psr7\Factory\ResponseFactory',
         ],
         ServerRequestFactoryInterface::class => [
             'Phalcon\Http\Message\ServerRequestFactory',
@@ -49,6 +51,7 @@ final class CommonPsr17ClassesStrategy implements DiscoveryStrategy
             'Http\Factory\Guzzle\ServerRequestFactory',
             'Http\Factory\Slim\ServerRequestFactory',
             'Laminas\Diactoros\ServerRequestFactory',
+            'Slim\Psr7\Factory\ServerRequestFactory',
         ],
         StreamFactoryInterface::class => [
             'Phalcon\Http\Message\StreamFactory',
@@ -59,6 +62,7 @@ final class CommonPsr17ClassesStrategy implements DiscoveryStrategy
             'Http\Factory\Guzzle\StreamFactory',
             'Http\Factory\Slim\StreamFactory',
             'Laminas\Diactoros\StreamFactory',
+            'Slim\Psr7\Factory\StreamFactory',
         ],
         UploadedFileFactoryInterface::class => [
             'Phalcon\Http\Message\UploadedFileFactory',
@@ -69,6 +73,7 @@ final class CommonPsr17ClassesStrategy implements DiscoveryStrategy
             'Http\Factory\Guzzle\UploadedFileFactory',
             'Http\Factory\Slim\UploadedFileFactory',
             'Laminas\Diactoros\UploadedFileFactory',
+            'Slim\Psr7\Factory\UploadedFileFactory',
         ],
         UriFactoryInterface::class => [
             'Phalcon\Http\Message\UriFactory',
@@ -79,6 +84,7 @@ final class CommonPsr17ClassesStrategy implements DiscoveryStrategy
             'Http\Factory\Guzzle\UriFactory',
             'Http\Factory\Slim\UriFactory',
             'Laminas\Diactoros\UriFactory',
+            'Slim\Psr7\Factory\UriFactory',
         ],
     ];