diff --git a/lib/mergeset/table.go b/lib/mergeset/table.go
index 6cf669615..ab82d123c 100644
--- a/lib/mergeset/table.go
+++ b/lib/mergeset/table.go
@@ -1323,10 +1323,7 @@ func getCompressLevel(itemsCount uint64) int {
 	if itemsCount <= 1<<25 {
 		return 2
 	}
-	if itemsCount <= 1<<28 {
-		return 3
-	}
-	return 4
+	return 3
 }
 
 func (tb *Table) nextMergeIdx() uint64 {
diff --git a/lib/storage/partition.go b/lib/storage/partition.go
index acec2bb18..8861a0afa 100644
--- a/lib/storage/partition.go
+++ b/lib/storage/partition.go
@@ -1542,13 +1542,7 @@ func getCompressLevel(rowsPerBlock float64) int {
 	if rowsPerBlock <= 1000 {
 		return 2
 	}
-	if rowsPerBlock <= 2000 {
-		return 3
-	}
-	if rowsPerBlock <= 4000 {
-		return 4
-	}
-	return 5
+	return 3
 }
 
 func (pt *partition) nextMergeIdx() uint64 {