diff --git a/slackjudge/.gitignore b/slackjudge/.gitignore
index 172dbf7..c3a9585 100644
--- a/slackjudge/.gitignore
+++ b/slackjudge/.gitignore
@@ -36,3 +36,4 @@ out/
 ### VS Code ###
 .vscode/
 .env
+/logs/*
\ No newline at end of file
diff --git a/slackjudge/src/main/java/store/slackjudge/batch/service/TierChangeDetector.java b/slackjudge/src/main/java/store/slackjudge/batch/service/TierChangeDetector.java
index 8fa821f..6f94539 100644
--- a/slackjudge/src/main/java/store/slackjudge/batch/service/TierChangeDetector.java
+++ b/slackjudge/src/main/java/store/slackjudge/batch/service/TierChangeDetector.java
@@ -26,7 +26,8 @@ public class TierChangeDetector implements SnapshotDetectStrategy<UserInfoRespon
     ==========================**/
     @Override
     public boolean detect(DetectionContext<UserInfoResponse> context) {
-        return context.current().tier()!=context.previous().getTier();
+        return context.current().tier()!=context.previous().getTier() ||
+               context.current().solvedCount()!=context.previous().getSolvedCount();
     }
 
     /*==========================
diff --git a/slackjudge/src/test/java/store/slackjudge/batch/infra/mongo/service/detector/TierChangeDetectorTest.java b/slackjudge/src/test/java/store/slackjudge/batch/infra/mongo/service/detector/TierChangeDetectorTest.java
index 89e4968..852f2ab 100644
--- a/slackjudge/src/test/java/store/slackjudge/batch/infra/mongo/service/detector/TierChangeDetectorTest.java
+++ b/slackjudge/src/test/java/store/slackjudge/batch/infra/mongo/service/detector/TierChangeDetectorTest.java
@@ -49,6 +49,7 @@ void update_Return_FALSE() {
         //given
         UserSolvedSnapShotDocument previous = UserSolvedSnapShotDocument.builder()
                 .tier(10)
+                .solvedCount(10)
                 .build();
         UserInfoResponse current = new UserInfoResponse(10, "test", 10, 10);