diff --git a/pyproject.toml b/pyproject.toml
index b5d5bf74..c819c2bf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "httpx>=0.25.0",
     "langchain==0.3.27",
     "langchain-community==0.3.30",
-    "langchain-core==0.3.80",
+    "langchain-core==0.3.81",
     "langchain-openai==0.3.28",
     "langchain-text-splitters==0.3.11",
     "langgraph==0.6.10",