diff --git a/configs/milvus.yaml b/configs/milvus.yaml
index 98430939eafc6..48456aee8fabf 100644
--- a/configs/milvus.yaml
+++ b/configs/milvus.yaml
@@ -375,7 +375,7 @@ dataCoord:
   compaction:
     enableAutoCompaction: true
     rpcTimeout: 10 # compaction rpc request timeout in seconds
-    maxParallelTaskNum: 100 # max parallel compaction task number
+    maxParallelTaskNum: 10 # max parallel compaction task number
     indexBasedCompaction: true
 
   enableGarbageCollection: true
diff --git a/pkg/util/paramtable/component_param.go b/pkg/util/paramtable/component_param.go
index e1b1f642355c3..e046a594cf59b 100644
--- a/pkg/util/paramtable/component_param.go
+++ b/pkg/util/paramtable/component_param.go
@@ -2188,7 +2188,7 @@ the number of binlog file reaches to max value.`,
 	p.CompactionMaxParallelTasks = ParamItem{
 		Key:          "dataCoord.compaction.maxParallelTaskNum",
 		Version:      "2.2.12",
-		DefaultValue: "100",
+		DefaultValue: "10",
 		Export:       true,
 	}
 	p.CompactionMaxParallelTasks.Init(base.mgr)