diff --git a/judgels-backends/judgels-server-app/src/main/java/judgels/sandalphon/submission/programming/SubmissionRegrader.java b/judgels-backends/judgels-server-app/src/main/java/judgels/sandalphon/submission/programming/SubmissionRegrader.java
index 1ab9455d9..5af66fbf8 100644
--- a/judgels-backends/judgels-server-app/src/main/java/judgels/sandalphon/submission/programming/SubmissionRegrader.java
+++ b/judgels-backends/judgels-server-app/src/main/java/judgels/sandalphon/submission/programming/SubmissionRegrader.java
@@ -39,8 +39,6 @@ public void regradeSubmissions(List<Submission> submissions, Map<String, Problem
             submissionsMap.put(gradingJid, submission);
         }
 
-        submissionStore.flushGrading();
-
         CompletableFuture.runAsync(() -> processor.process(submissionsMap, configsMap), executorService)
                 .exceptionally(e -> {
                     LOGGER.error("Failed to regrade submissions", e);