diff --git a/configs/embedded-milvus.yaml b/configs/embedded-milvus.yaml
index 9bd4c84a3b..d2b3c0ecbb 100644
--- a/configs/embedded-milvus.yaml
+++ b/configs/embedded-milvus.yaml
@@ -210,7 +210,7 @@ dataCoord:
 
   segment:
     maxSize: 512 # Maximum size of a segment in MB
-    sealProportion: 0.75 # It's the minimum proportion for a segment which can be sealed
+    sealProportion: 0.25 # It's the minimum proportion for a segment which can be sealed
     assignmentExpiration: 2000 # The time of the assignment expiration in ms
 
   compaction:
diff --git a/configs/milvus.yaml b/configs/milvus.yaml
index 9cbd46b10b..7d42e84964 100644
--- a/configs/milvus.yaml
+++ b/configs/milvus.yaml
@@ -197,7 +197,7 @@ dataCoord:
 
   segment:
     maxSize: 512 # Maximum size of a segment in MB
-    sealProportion: 0.75 # It's the minimum proportion for a segment which can be sealed
+    sealProportion: 0.25 # It's the minimum proportion for a segment which can be sealed
     assignmentExpiration: 2000 # The time of the assignment expiration in ms
     maxLife: 86400 # The max lifetime of segment in seconds, 24*60*60
 
diff --git a/internal/util/paramtable/component_param.go b/internal/util/paramtable/component_param.go
index 75560c34b8..c6382be6e0 100644
--- a/internal/util/paramtable/component_param.go
+++ b/internal/util/paramtable/component_param.go
@@ -916,7 +916,7 @@ func (p *dataCoordConfig) initSegmentMaxSize() {
 }
 
 func (p *dataCoordConfig) initSegmentSealProportion() {
-	p.SegmentSealProportion = p.Base.ParseFloatWithDefault("dataCoord.segment.sealProportion", 0.75)
+	p.SegmentSealProportion = p.Base.ParseFloatWithDefault("dataCoord.segment.sealProportion", 0.25)
 }
 
 func (p *dataCoordConfig) initSegAssignmentExpiration() {