diff --git a/requirements.txt b/requirements.txt
index ddf37aa..3352750 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,7 @@ jupyterlab-pygments==0.3.0
 langchain==0.2.12 
 langchainhub==0.1.20
 langchain-community==0.2.11
-langchain-core==0.2.27
+langchain-core==0.2.28
 langchain-openai==0.1.20
 MarkupSafe==2.1.5
 marshmallow==3.21.3