diff --git a/env.example b/env.example
index a824a1f5..a64626ef 100644
--- a/env.example
+++ b/env.example
@@ -127,7 +127,7 @@ ENABLE_LLM_CACHE_FOR_EXTRACT=true
 # CHUNK_OVERLAP_SIZE=100
 
 ### Number of summary semgments or tokens to trigger LLM summary on entity/relation merge (at least 3 is recommented)
-# FORCE_LLM_SUMMARY_ON_MERGE=4
+# FORCE_LLM_SUMMARY_ON_MERGE=8
 ### Number of tokens to trigger LLM summary on entity/relation merge
 # SUMMARY_MAX_TOKENS = 500
 ### Maximum context size sent to LLM for description summary
diff --git a/lightrag/constants.py b/lightrag/constants.py
index c180e2dd..0e6d6dcd 100644
--- a/lightrag/constants.py
+++ b/lightrag/constants.py
@@ -14,7 +14,7 @@ DEFAULT_MAX_GRAPH_NODES = 1000
 DEFAULT_SUMMARY_LANGUAGE = "English"  # Default language for summaries
 DEFAULT_MAX_GLEANING = 1
 
-DEFAULT_FORCE_LLM_SUMMARY_ON_MERGE = 4
+DEFAULT_FORCE_LLM_SUMMARY_ON_MERGE = 8
 DEFAULT_SUMMARY_MAX_TOKENS = 500  # Max token size for entity/relation summary
 DEFAULT_SUMMARY_CONTEXT_SIZE = 10000  # Default maximum token size