diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 0af8959..49b87a3 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,3 +1,5 @@
 custom:
   - https://www.amazon.com/gp/product/B09RHH44S5/
   - http://books.apple.com/us/book/id6467567700
+  - https://leanpub.com/sergey-konstantinov-the-api/
+  - https://twirl.gumroad.com/l/Sergey-Konstantinov-The-API