diff --git a/src/main/java/com/techlooper/service/impl/ChallengeServiceImpl.java b/src/main/java/com/techlooper/service/impl/ChallengeServiceImpl.java
index b898a1b6b..05431c135 100644
--- a/src/main/java/com/techlooper/service/impl/ChallengeServiceImpl.java
+++ b/src/main/java/com/techlooper/service/impl/ChallengeServiceImpl.java
@@ -300,15 +300,14 @@ public List<ChallengeDetailDto> listChallenges() {
 //    }
 //    return sortChallengesByDescendingStartDate(challenges);
         TermQueryBuilder notExpiredQuery = termQuery("expired", Boolean.TRUE);
-        Iterable<ChallengeEntity> challenges = challengeRepository.search(boolQuery().mustNot(notExpiredQuery));
-        ArrayList<ChallengeDetailDto> dtos = new ArrayList<>();
-        challenges.forEach(challengeEntity -> {
+        Iterable<ChallengeEntity> challengeIterator = challengeRepository.search(boolQuery().mustNot(notExpiredQuery));
+        ArrayList<ChallengeDetailDto> challenges = new ArrayList<>();
+        challengeIterator.forEach(challengeEntity -> {
             ChallengeDetailDto challengeDetailDto = dozerMapper.map(challengeEntity, ChallengeDetailDto.class);
             challengeDetailDto.setNumberOfRegistrants(getNumberOfRegistrants(challengeEntity.getChallengeId()));
-            dtos.add(challengeDetailDto);
+            challenges.add(challengeDetailDto);
         });
-        dozerMapper.map(challenges, dtos);
-        return dtos;
+        return sortChallengesByDescendingStartDate(challenges);
     }
 
     private void sendContestApplicationEmail(Template template, String mailSubject, Address[] recipientAddresses,
diff --git a/src/main/resources/local/techlooper.properties b/src/main/resources/local/techlooper.properties
index 9b3440db8..36dfe03b1 100644
--- a/src/main/resources/local/techlooper.properties
+++ b/src/main/resources/local/techlooper.properties
@@ -91,8 +91,9 @@ mail.notifyChallengeTimelineRegistration.subject.en = %d more day(s) to start %s
 mail.notifyChallengeTimelineInProgress.subject.vn = C\u00F2n %d ng\u00E0y n\u1EEFa t\u1EDBi h\u1EA1n g\u1EEDi s\u1EA3n ph\u1EA9m cho th\u1EED th\u00E1ch %s
 mail.notifyChallengeTimelineInProgress.subject.en = %d more day(s) to submit for %s
 
-mail.onBoarding.subject.en = Are you ready to become a Tech Talent?

 mail.onBoarding.subject.vi = B\u1EA1n \u0111\u00E3 s\u1EB5n s\u00E0ng tr\u1EDF th\u00E0nh m\u1ED9t Nh\u00E2n T\u00E0i C\u00F4ng Ngh\u1EC7?
+mail.onBoarding.subject.en = Are you ready to become a Tech Talent
+
 
 
 
diff --git a/src/main/resources/production/techlooper.properties b/src/main/resources/production/techlooper.properties
index 45ccea18a..3c17acac1 100644
--- a/src/main/resources/production/techlooper.properties
+++ b/src/main/resources/production/techlooper.properties
@@ -91,5 +91,5 @@ mail.notifyChallengeTimelineRegistration.subject.en = %d more day(s) to start %s
 mail.notifyChallengeTimelineInProgress.subject.vn = C\u00F2n %d ng\u00E0y n\u1EEFa t\u1EDBi h\u1EA1n g\u1EEDi s\u1EA3n ph\u1EA9m cho th\u1EED th\u00E1ch %s
 mail.notifyChallengeTimelineInProgress.subject.en = %d more day(s) to submit for %s
 
-mail.onBoarding.subject.en = Are you ready to become a Tech Talent?

+mail.onBoarding.subject.en = Are you ready to become a Tech Talent
 mail.onBoarding.subject.vi = B\u1EA1n \u0111\u00E3 s\u1EB5n s\u00E0ng tr\u1EDF th\u00E0nh m\u1ED9t Nh\u00E2n T\u00E0i C\u00F4ng Ngh\u1EC7?
diff --git a/src/main/resources/staging/techlooper.properties b/src/main/resources/staging/techlooper.properties
index cf16d531e..a45e11614 100644
--- a/src/main/resources/staging/techlooper.properties
+++ b/src/main/resources/staging/techlooper.properties
@@ -92,5 +92,5 @@ mail.notifyChallengeTimelineRegistration.subject.en = %d more day(s) to start %s
 mail.notifyChallengeTimelineInProgress.subject.vn = C\u00F2n %d ng\u00E0y n\u1EEFa t\u1EDBi h\u1EA1n g\u1EEDi s\u1EA3n ph\u1EA9m cho th\u1EED th\u00E1ch %s
 mail.notifyChallengeTimelineInProgress.subject.en = %d more day(s) to submit for %s
 
-mail.onBoarding.subject.en = Are you ready to become a Tech Talent?

+mail.onBoarding.subject.en = Are you ready to become a Tech Talent
 mail.onBoarding.subject.vi = B\u1EA1n \u0111\u00E3 s\u1EB5n s\u00E0ng tr\u1EDF th\u00E0nh m\u1ED9t Nh\u00E2n T\u00E0i C\u00F4ng Ngh\u1EC7?
\ No newline at end of file