diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f143c47..4862fde 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -18,6 +18,7 @@ If your project targets mainly *developers*, tech-savvy users or is a helper (re
 Software submitted to **ALL APPS** website page **must be**:
 * Fully open source (please, consider showcasing your closed source apps on https://the-federation.info)
 * Supporting or planning to support one of the following protocols: OStatus, diaspora, Zot, ActivityPub (please, consider showcasing your apps federating via other protocols on https://the-federation.info)
+* Being maintained (latest commit no older than 1.5 years ago)
 
 Fork this repository. Add your project data to `./source/_data/miscellaneous.json` file.
 
@@ -42,7 +43,7 @@ Please, choose no more than **3 categories** (array of strings) for the software
 * `Forums` (forums and forum-like software, boards, etc)
 * `Other` (everything that doesn't quite fit into the above categories)
 
-A project may have a logo / image (45x45px), placed in `./source/img/misc` folder.
+A project may have a logo / image (PNG - 45x45px; SVG height and width - 24x24 if possible), placed in `./source/img/misc` folder.
 
 ### [Submitting tools](#submitting-tools)
 Fork this repository. Add your project data to `./source/_data/tools.json` file.