diff --git a/docs/build/build-open-source.md b/docs/build/build-open-source.md
index cdd129d3675..bb316c96f0d 100644
--- a/docs/build/build-open-source.md
+++ b/docs/build/build-open-source.md
@@ -126,6 +126,7 @@ In the below sections you can find a list of different layers of the Polkadot St
 | Gaming          | [Open Emoji Battler](https://github.com/OpenEmojiBattler/open-emoji-battler) 🔴, [NewOmega](https://github.com/WiktorStarczewski/newomega.polkadot/blob/master/newomega_delegator/newomega/newomega.rs) 🔴|                                    |
 | DAO             | [subDAO](https://github.com/w3f-grants-archive/subDAO-contracts) 🔴, [RainbowDAO](https://github.com/RainbowcityFoundation/RainbowDAO-Protocol-Ink-milestone_1) 🔴, [MangoBox](https://github.com/Mangoboxlabs/Mangoboxink) 🟡|                                    |
 | Spam Protection | [Prosopo](https://github.com/prosopo-io/integration) 🔴|                                    |
+| Tooling         | [OpenBrush](https://github.com/727-Ventures/openbrush-contracts) 🟢|                                    |
 | Other           | [Candle Auctions](https://github.com/agryaznov/candle-auction-ink) 🔴, [polkasign-contract](https://github.com/SubDAO-Network/polkasign-contract) 🔴, [OCEX](https://github.com/bsn-si/ocex-cli) 🔴, [Roloi](https://github.com/RoloiMoney/roloi-polkadot-w3f-grant) 🔴|                                    |
 
 ### Chains and Pallets