diff --git a/src/index.js b/src/index.js
index <HASH>..<HASH> 100644
--- a/src/index.js
+++ b/src/index.js
@@ -25,9 +25,10 @@ class Origin {
     ipfsGatewayPort = defaultIpfsGatewayPort,
     ipfsGatewayProtocol = defaultIpfsGatewayProtocol,
     attestationServerUrl = defaultAttestationServerUrl,
-    contractAddresses
+    contractAddresses,
+    web3
   } = {}) {
-    this.contractService = new ContractService({ contractAddresses })
+    this.contractService = new ContractService({ contractAddresses, web3 })
     this.ipfsService = new IpfsService({
       ipfsDomain,
       ipfsApiPort,
Receive non-window external web3 (#<I>)