# UMIP 45 -Add Wrapped Bitcoin as a collateral currency

**URL:** <https://discourse.uma.xyz/t/umip-45-add-wrapped-bitcoin-as-a-collateral-currency/1456>\
**Category:** technical UMIPs\
**Created:** [March 2, 2022, 1:16pm UTC](https://discourse.uma.xyz/t/umip-45-add-wrapped-bitcoin-as-a-collateral-currency/1456 "2022-03-02T13:16:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mhairi](https://yyz2.discourse-cdn.com/flex032/user_avatar/discourse.uma.xyz/mhairi/32/48_2.png) [@Mhairi](https://discourse.uma.xyz/u/Mhairi)\
**Post date:** [March 2, 2022, 1:16pm UTC](https://discourse.uma.xyz/t/umip-45-add-wrapped-bitcoin-as-a-collateral-currency/1456/1 "2022-03-02T13:16:32Z")

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This UMIP will add Wrapped Bitcoin (WBTC) to the supported collateral currencies on the global whitelist contract, allowing the usage of WBTC as collateral currency.

> <https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-45.md>