diff --git a/apps/backend/src/lib/pendingSubmission.ts b/apps/backend/src/lib/pendingSubmission.ts
index 969d450..fd4fc0a 100644
--- a/apps/backend/src/lib/pendingSubmission.ts
+++ b/apps/backend/src/lib/pendingSubmission.ts
@@ -27,7 +27,10 @@ export const storePendingSubmission = async (
         RedisKeys.PENDING_SUBMISSION(meta.userId, meta.problemId, submission.id),
         convertToPlainRedis(submission)
     ).then(() => {
-        Redis.expire(RedisKeys.PENDING_SUBMISSION(meta.userId, meta.problemId, submission.id), 60);
+        Redis.expire(
+            RedisKeys.PENDING_SUBMISSION(meta.userId, meta.problemId, submission.id),
+            5 * 60
+        );
     });
 };
 
diff --git a/apps/backend/src/lib/testcase.ts b/apps/backend/src/lib/testcase.ts
index 9b3c8b1..b190e23 100644
--- a/apps/backend/src/lib/testcase.ts
+++ b/apps/backend/src/lib/testcase.ts
@@ -181,17 +181,17 @@ export const generateTestcaseBatch = async (cluster: Cluster, count: number) =>
     await Promise.all(
         testcases.map(async (tc) => {
             await Redis.set(RedisKeys.CACHED_TESTCASE_INPUT(cluster.id, tc.id), tc.input, {
-                EX: 15 * 60,
+                EX: 3 * 60 * 60,
             });
             await Redis.set(
                 RedisKeys.CACHED_TESTCASE_OUTPUT(cluster.id, tc.id),
                 tc.correct_output ?? "",
-                { EX: 15 * 60 }
+                { EX: 3 * 60 * 60 }
             );
         })
     );
 
-    await Redis.set(RedisKeys.CLUSTER_STATUS(cluster.id), "cached", { EX: 15 * 60 });
+    await Redis.set(RedisKeys.CLUSTER_STATUS(cluster.id), "cached", { EX: 3 * 60 * 60 });
 
     return testcases;
 };