diff --git a/docs/contributing.md b/docs/contributing.md
index 2343d627..f5e0b0d8 100644
--- a/docs/contributing.md
+++ b/docs/contributing.md
@@ -131,6 +131,6 @@ Before your PR can be merged, you'll need to sign our CLA:
 BentoPDF is dual-licensed:
 
 - **AGPL-3.0** for open-source projects where you share your full source code publicly
-- **Commercial License** for proprietary/closed-source applications - [Get Lifetime License for $79](https://ko-fi.com/s/f32ca4cb75)
+- **Commercial License** for proprietary/closed-source applications - [Get Lifetime License for $79](https://buy.polar.sh/polar_cl_ThDfffbl733x7oAodcIryCzhlO57ZtcWPq6HJ1qMChd)
 
 By contributing, you agree that your contributions will be licensed under these terms.