diff --git a/README.md b/README.md
index 4836b5b..3df4fc4 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ implements the following extensions:
   * VK_KHR_shared_presentable_image
   * VK_EXT_image_compression_control_swapchain
   * VK_KHR_present_id
+  * VK_EXT_swapchain_maintenance1
+  * VK_EXT_surface_maintenance1
 
 ## Building