diff --git a/pyproject.toml b/pyproject.toml
index c16b6f3..c8691ab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -91,7 +91,7 @@ server = [
     "langgraph==1.1.10",
     "langgraph-checkpoint==4.0.3",
     "langgraph-checkpoint-sqlite==3.0.3",
-    "langchain-core>=1.3.0,<2.0.0",
+    "langchain-core>=1.3.3,<2.0.0",
     "langchain-openai>=1.2.1",
     "pandas>=2.3.3",
     "numpy>=2.2.6",
diff --git a/requirements.txt b/requirements.txt
index 9ae9205..3377179 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ langgraph==1.1.10
 langgraph-checkpoint==4.0.3
 langgraph-checkpoint-sqlite==3.0.3
 langchain-openai>=1.2.1
-langchain-core>=1.2.0,<2.0.0
+langchain-core>=1.3.3,<2.0.0
 
 # RAG & Search (New for M3)
 sentence-transformers>=3.0.0