diff --git a/requirements.txt b/requirements.txt
index 9c58dc2..0331df0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-langchain-core>=0.3.0
+langchain-core>=1.0.0
 langchain-openai>=0.3.0
 pydantic>=2.0
 python-dotenv>=1.0.0