diff --git a/lib/mergeset/table.go b/lib/mergeset/table.go
index aa921b9e1f..29afa687a2 100644
--- a/lib/mergeset/table.go
+++ b/lib/mergeset/table.go
@@ -34,7 +34,7 @@ const maxInmemoryParts = 64
 // This number may be reached when the insertion pace outreaches merger pace.
 // If this number is reached, then assisted merges are performed
 // during data ingestion.
-const maxFileParts = 256
+const maxFileParts = 64
 
 // Default number of parts to merge at once.
 //
diff --git a/lib/storage/partition.go b/lib/storage/partition.go
index 77f07a2443..41b1a7177a 100644
--- a/lib/storage/partition.go
+++ b/lib/storage/partition.go
@@ -38,7 +38,7 @@ const maxInmemoryPartsPerPartition = 32
 // The maximum number of small parts in the partition.
 //
 // If the number of small parts reaches this value, then assisted merge runs during data ingestion.
-const maxSmallPartsPerPartition = 128
+const maxSmallPartsPerPartition = 64
 
 // Default number of parts to merge at once.
 //