diff --git a/13426/pyproject.toml b/13426/pyproject.toml
index ca5d728..4176bce 100644
--- a/13426/pyproject.toml
+++ b/13426/pyproject.toml
@@ -36,7 +36,7 @@ dependencies = [
     "jmespath==1.0.1",
     "langchain-community==0.3.31",
     "langchain-mongodb==0.7.1",
-    "langchain-core==0.3.79",
+    "langchain-core==0.3.81",
     "langchain-openai==0.3.35",
     "langgraph==0.6.10",
     "motor==3.7.1", # required by quart-session