diff --git a/EIPS/eip-897.md b/EIPS/eip-897.md
index d0fdb2aa..f6bba043 100644
--- a/EIPS/eip-897.md
+++ b/EIPS/eip-897.md
@@ -27,7 +27,7 @@ operate with proxies.
 
 ## Implementations
 
-- **aragonOS**: [AppProxyUpgradeable](https://github.com/aragon/aragonOS/blob/dev/contracts/apps/AppProxyUpgradeable.sol), [AppProxyPinned](https://github.com/aragon/aragonOS/blob/dev/contracts/apps/AppProxyPinned.sol) and [KernelProxy](https://github.com/aragon/aragonOS/blob/dev/contracts/kernel/KernelProxy.sol)
+- **aragonOS**: [AppProxyUpgradeable](https://github.com/aragon/aragonOS/blob/master/contracts/apps/AppProxyUpgradeable.sol), [AppProxyPinned](https://github.com/aragon/aragonOS/blob/master/contracts/apps/AppProxyPinned.sol) and [KernelProxy](https://github.com/aragon/aragonOS/blob/master/contracts/kernel/KernelProxy.sol)
 
 - **zeppelinOS**: [Proxy](https://github.com/zeppelinos/labs/blob/2da9e859db81a61f2449d188e7193788ca721c65/upgradeability_ownership/contracts/Proxy.sol)