diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9d04efab..34479b87 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -23,8 +23,8 @@ Thank you for your interest in contributing to the icon repository! To ensure sm
 
 ### Format
 
-- **SVG Format Required**: All icons must be submitted in SVG format.
-- **Automatic PNG and WEBP Generation**: PNG and WEBP versions are generated automatically from the SVG files using the following settings:
+- **SVG Format Required**: All icons should be submitted in SVG format. If an SVG version is unavailable, a PNG version will suffice, and a WEBP version will be accordingly.
+- **Automatic PNG and WEBP Generation**: PNG and WEBP versions are generated automatically from the SVG (or PNG) files using the following settings:
   - **Dimensions**:
     - Height: 512 pixels
     - Width: Auto (maintaining aspect ratio)