diff --git a/README.md b/README.md
index 33ddaa9..48a9415 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ There are three core contracts:
  - `core/Badges.sol` Reads the registry. Stateless Non Transferable Token view of attestations (ERC1155)
 
 It also contains implementations of attester in `attesters/`:
-- `HydraS1SimpleAttester.sol`: ZK Attester using the [Hydra S1 Proving Scheme](https://hydra-s1.docs.sismo.io) and the notion of nullifiers. Users must provide a ZK Proof along with their request to generate attestations
+- `HydraS1SimpleAttester.sol`: ZK Attester using the [Hydra S1 Proving Scheme](https://docs.sismo.io/sismo-docs/data-vault/proving-schemes/hydra-s1) and the notion of nullifiers. Users must provide a ZK Proof along with their request to generate attestations
 - `HydraS1AccountboundAttester.sol`: Accountbound version of the Simple Hydra S1 Simple Attester. (Users can update at will where the attestation is stored)
 
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