diff --git a/nise-backend/src/main/kotlin/com/nisemoe/nise/scheduler/GlobalCache.kt b/nise-backend/src/main/kotlin/com/nisemoe/nise/scheduler/GlobalCache.kt
index b23a7c5..f5de1d1 100644
--- a/nise-backend/src/main/kotlin/com/nisemoe/nise/scheduler/GlobalCache.kt
+++ b/nise-backend/src/main/kotlin/com/nisemoe/nise/scheduler/GlobalCache.kt
@@ -13,7 +13,6 @@ import org.slf4j.LoggerFactory
 import org.springframework.scheduling.annotation.Scheduled
 import org.springframework.stereotype.Service
 import org.springframework.util.StopWatch
-import kotlin.math.roundToInt
 
 @Service
 class GlobalCache(