diff --git a/src/polygon-did-registrar.ts b/src/polygon-did-registrar.ts
index e665a35..7b6abb0 100644
--- a/src/polygon-did-registrar.ts
+++ b/src/polygon-did-registrar.ts
@@ -18,7 +18,10 @@ export async function wrapDidDocument(
   serviceEndpoint?: string,
 ) {
   return {
-    '@context': 'https://w3id.org/did/v1',
+    '@context': [
+      'https://w3id.org/did/v1',
+      'https://w3id.org/security/suites/secp256k1-2019/v1',
+    ],
     id: did,
     verificationMethod: [
       {
diff --git a/src/polygon-did-update.ts b/src/polygon-did-update.ts
index 79e78d2..10e3295 100644
--- a/src/polygon-did-update.ts
+++ b/src/polygon-did-update.ts
@@ -35,6 +35,7 @@ export async function updateDidDoc(
     if (!didDoc && !JSON.parse(didDoc)) {
       throw new Error('Invalid DID has been entered!')
     }
+
     const didDocJson = JSON.parse(didDoc)
 
     if (
@@ -46,10 +47,7 @@ export async function updateDidDoc(
     }
 
     // Calling smart contract with update DID document on matic chain
-    const txnHash = await registry.updateDIDDoc(
-      parsedDid.didAddress,
-      didDocJson,
-    )
+    const txnHash = await registry.updateDIDDoc(parsedDid.didAddress, didDoc)
 
     return BaseResponse.from(txnHash, 'Update DID document successfully')
   } catch (error) {
diff --git a/src/registrar.ts b/src/registrar.ts
index 3b06fcc..5102068 100644
--- a/src/registrar.ts
+++ b/src/registrar.ts
@@ -122,7 +122,7 @@ export class PolygonDID {
       // Calling smart contract with update DID document on matic chain
       const txnHash = await this.registry.updateDIDDoc(
         parsedDid.didAddress,
-        didDocJson,
+        didDoc,
       )
 
       return {