diff --git a/services/repository/contributor.go b/services/repository/contributor.go
index 817b4b086..9a86b91dc 100644
--- a/services/repository/contributor.go
+++ b/services/repository/contributor.go
@@ -31,7 +31,7 @@ func GetRepoTopNContributors(repo *models.Repository, N int) ([]*models.Contribu
 	log.Debug("Get RepoTopNContributors from disk,repo.ID = %d ", repo.ID)
 	jsonVal, err := json.Marshal(&ContributorCacheVal{Contributors: contributorInfos, Total: total})
 	if err == nil {
-		redis_client.Setex(redis_key.RepoTopNContributors(repo.ID, N), string(jsonVal), 5*time.Minute)
+		redis_client.Setex(redis_key.RepoTopNContributors(repo.ID, N), string(jsonVal), 2*time.Minute)
 	}
 	return contributorInfos, total
 }