diff --git a/backend/src/main/java/ru/micord/ervu/dao/ExcerptHistoryDao.java b/backend/src/main/java/ru/micord/ervu/dao/ExcerptHistoryDao.java
index d330e654..ce8704a8 100644
--- a/backend/src/main/java/ru/micord/ervu/dao/ExcerptHistoryDao.java
+++ b/backend/src/main/java/ru/micord/ervu/dao/ExcerptHistoryDao.java
@@ -90,10 +90,10 @@ public class ExcerptHistoryDao {
         .execute();
   }
 
-  public void deleteOld() {
+  public void deleteOlderThan(long hours) {
     dslContext.deleteFrom(EXCERPT_HISTORY)
         .where(EXCERPT_HISTORY.DATETIME.le(
-            Timestamp.valueOf(LocalDateTime.now().minus(1, ChronoUnit.HOURS))))
+            Timestamp.valueOf(LocalDateTime.now().minus(hours, ChronoUnit.HOURS))))
         .execute();
   }
 }
diff --git a/backend/src/main/java/ru/micord/ervu/scheduler/ExcerptCleanScheduler.java b/backend/src/main/java/ru/micord/ervu/scheduler/ExcerptCleanScheduler.java
index 392c9c6f..daa4fddf 100644
--- a/backend/src/main/java/ru/micord/ervu/scheduler/ExcerptCleanScheduler.java
+++ b/backend/src/main/java/ru/micord/ervu/scheduler/ExcerptCleanScheduler.java
@@ -1,6 +1,7 @@
 package ru.micord.ervu.scheduler;
 
 import net.javacrumbs.shedlock.core.SchedulerLock;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 import ru.micord.ervu.dao.ExcerptHistoryDao;
@@ -13,6 +14,9 @@ public class ExcerptCleanScheduler {
 
   private final ExcerptHistoryDao excerptHistoryDao;
 
+  @Value("${excerpt.lifetime.hours:24}")
+  private long fileLifetime;
+
   public ExcerptCleanScheduler(ExcerptHistoryDao excerptHistoryDao) {
     this.excerptHistoryDao = excerptHistoryDao;
   }
@@ -20,6 +24,6 @@ public class ExcerptCleanScheduler {
   @Scheduled(fixedDelayString = "${excerpt.cleanup.delay:30000}")
   @SchedulerLock(name = "oldExcerptFilesCleaning")
   public void cleanOld() {
-    excerptHistoryDao.deleteOld();
+    excerptHistoryDao.deleteOlderThan(fileLifetime);
   }
 }