diff --git a/tests/unit-tests/challenge-email.t.cpp b/tests/unit-tests/challenge-email.t.cpp
index b73d22e..3435a00 100644
--- a/tests/unit-tests/challenge-email.t.cpp
+++ b/tests/unit-tests/challenge-email.t.cpp
@@ -45,7 +45,8 @@
   auto identity = addIdentity(Name("/ndn/site1"));
   auto key = identity.getDefaultKey();
   auto cert = key.getDefaultCertificate();
-  CaState request(Name("/ndn/site1"), "123", RequestType::NEW, Status::BEFORE_CHALLENGE, cert, makeEmptyBlock(ndn::tlv::ContentType_Key));
+  RequestID requestId = {1,2,3,4,5,6,7,8};
+  CaState request(Name("/ndn/site1"), requestId, RequestType::NEW, Status::BEFORE_CHALLENGE, cert, makeEmptyBlock(ndn::tlv::ContentType_Key));
 
   Block paramTLV = makeEmptyBlock(tlv::EncryptedPayload);
   paramTLV.push_back(makeStringBlock(tlv::ParameterKey, ChallengeEmail::PARAMETER_KEY_EMAIL));
@@ -94,7 +95,8 @@
   auto identity = addIdentity(Name("/ndn/site1"));
   auto key = identity.getDefaultKey();
   auto cert = key.getDefaultCertificate();
-  CaState request(Name("/ndn/site1"), "123", RequestType::NEW, Status::BEFORE_CHALLENGE, cert, makeEmptyBlock(ndn::tlv::ContentType_Key));
+  RequestID requestId = {1,2,3,4,5,6,7,8};
+  CaState request(Name("/ndn/site1"), requestId, RequestType::NEW, Status::BEFORE_CHALLENGE, cert, makeEmptyBlock(ndn::tlv::ContentType_Key));
 
   Block paramTLV = makeEmptyBlock(tlv::EncryptedPayload);
   paramTLV.push_back(makeStringBlock(tlv::ParameterKey, ChallengeEmail::PARAMETER_KEY_EMAIL));
@@ -115,7 +117,8 @@
   auto cert = key.getDefaultCertificate();
   JsonSection json;
   json.put(ChallengeEmail::PARAMETER_KEY_CODE, "4567");
-  CaState request(Name("/ndn/site1"), "123", RequestType::NEW, Status::CHALLENGE, cert,
+  RequestID requestId = {1,2,3,4,5,6,7,8};
+  CaState request(Name("/ndn/site1"), requestId, RequestType::NEW, Status::CHALLENGE, cert,
                   "email", ChallengeEmail::NEED_CODE, time::system_clock::now(),
                   3, time::seconds(3600), std::move(json), makeEmptyBlock(ndn::tlv::ContentType_Key), 0);
 
@@ -137,7 +140,8 @@
   auto cert = key.getDefaultCertificate();
   JsonSection json;
   json.put(ChallengeEmail::PARAMETER_KEY_CODE, "4567");
-  CaState request(Name("/ndn/site1"), "123", RequestType::NEW, Status::CHALLENGE, cert,
+  RequestID requestId = {1,2,3,4,5,6,7,8};
+  CaState request(Name("/ndn/site1"), requestId, RequestType::NEW, Status::CHALLENGE, cert,
                   "email", ChallengeEmail::NEED_CODE, time::system_clock::now(),
                   3, time::seconds(3600), std::move(json), makeEmptyBlock(ndn::tlv::ContentType_Key), 0);