diff --git a/pyproject.toml b/pyproject.toml
index a53580b..ad91e38 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -91,7 +91,7 @@ server = [
     "langgraph==1.2.7",
     "langgraph-checkpoint==4.1.1",
     "langgraph-checkpoint-sqlite==3.1.0",
-    "langchain-core>=1.3.0,<2.0.0",
+    "langchain-core>=1.4.8,<2.0.0",
     "langchain-openai>=1.3.3",
     "pandas>=2.3.3",
     "numpy>=2.2.6",
diff --git a/requirements.txt b/requirements.txt
index 0e23855..84a68f2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ langgraph==1.2.7
 langgraph-checkpoint==4.1.1
 langgraph-checkpoint-sqlite==3.1.0
 langchain-openai>=1.3.3
-langchain-core>=1.2.0,<2.0.0
+langchain-core>=1.4.8,<2.0.0
 
 # RAG & Search (New for M3)
 sentence-transformers>=5.6.0