diff --git a/tests/proofs/mtp-onchain.test.ts b/tests/proofs/mtp-onchain.test.ts
index b6b11ed6..a5ea6e05 100644
--- a/tests/proofs/mtp-onchain.test.ts
+++ b/tests/proofs/mtp-onchain.test.ts
@@ -133,7 +133,7 @@ describe('mtp onchain proofs', () => {
   });
 
   const onChainMerklizedTest = async (circuitId: CircuitId) => {
-    const seedPhraseIssuer: Uint8Array = byteEncoder.encode('seedseedseedseedseedseedseedissuer');
+    const seedPhraseIssuer: Uint8Array = byteEncoder.encode('seedseedseedseedseedseedseed1new');
     const seedPhrase: Uint8Array = byteEncoder.encode('seedseedseedseedseedseedseeduser');
 
     const { did: userDID } = await idWallet.createIdentity({
diff --git a/tests/proofs/mtp.test.ts b/tests/proofs/mtp.test.ts
index b0accf40..33d069c0 100644
--- a/tests/proofs/mtp.test.ts
+++ b/tests/proofs/mtp.test.ts
@@ -215,7 +215,7 @@ describe('mtp proofs', () => {
   });
 
   const merklizedTest = async (circuitId: CircuitId) => {
-    const seedPhraseIssuer: Uint8Array = byteEncoder.encode('seedseedseedseedseedseedseedissuer');
+    const seedPhraseIssuer: Uint8Array = byteEncoder.encode('seedseedseedseedseedseedseed1new');
 
     const { did: userDID } = await createIdentity(idWallet, {
       seed: SEED_USER