diff --git a/src/Illuminate/Routing/RoutingServiceProvider.php b/src/Illuminate/Routing/RoutingServiceProvider.php
index a2ca675da4e2..547e195e3866 100755
--- a/src/Illuminate/Routing/RoutingServiceProvider.php
+++ b/src/Illuminate/Routing/RoutingServiceProvider.php
@@ -138,9 +138,15 @@ protected function registerPsrRequest()
                 $psr17Factory = new Psr17Factory;
 
                 return with((new PsrHttpFactory($psr17Factory, $psr17Factory, $psr17Factory, $psr17Factory))
-                    ->createRequest($illuminateRequest = $app->make('request')), fn ($request) => $request->withParsedBody(
-                        array_merge($request->getParsedBody() ?? [], $illuminateRequest->getPayload()->all())
-                    ));
+                    ->createRequest($illuminateRequest = $app->make('request')), function (ServerRequestInterface $request) use ($illuminateRequest) {
+                        if ($illuminateRequest->getContentTypeFormat() !== 'json' && $illuminateRequest->request->count() === 0) {
+                            return $request;
+                        }
+
+                        return $request->withParsedBody(
+                            array_merge($request->getParsedBody() ?? [], $illuminateRequest->getPayload()->all())
+                        );
+                    });
             }
 
             throw new BindingResolutionException('Unable to resolve PSR request. Please install the symfony/psr-http-message-bridge and nyholm/psr7 packages.');
diff --git a/tests/Integration/Foundation/Fixtures/laravel.txt.gz b/tests/Integration/Foundation/Fixtures/laravel.txt.gz
new file mode 100644
index 000000000000..636ea645842c
Binary files /dev/null and b/tests/Integration/Foundation/Fixtures/laravel.txt.gz differ
diff --git a/tests/Integration/Foundation/RoutingServiceProviderTest.php b/tests/Integration/Foundation/RoutingServiceProviderTest.php
index 4753f03eda02..5825bbd626eb 100644
--- a/tests/Integration/Foundation/RoutingServiceProviderTest.php
+++ b/tests/Integration/Foundation/RoutingServiceProviderTest.php
@@ -122,6 +122,18 @@ public function testItIncludesMergedDataInServerRequestInterfaceInstancesUsingPo
             'request-data' => 'request-data',
         ]);
     }
+
+    public function testItHandlesGzippedBodyPayloadsWhenCreatingServerRequestInterfaceInstances()
+    {
+        Route::post('test-route', function (ServerRequestInterface $request) {
+            return gzdecode((string) $request->getBody());
+        });
+
+        $response = $this->call('POST', 'test-route', content: file_get_contents(__DIR__.'/Fixtures/laravel.txt.gz'));
+
+        $response->assertOk();
+        $response->assertContent("Laravel\n");
+    }
 }
 
 class MergeDataMiddleware