diff --git a/examples/ui/gradio/gradio-rag-milvus-vllm-openai/requirements.txt b/examples/ui/gradio/gradio-rag-milvus-vllm-openai/requirements.txt
index 6637ce4..6e885da 100644
--- a/examples/ui/gradio/gradio-rag-milvus-vllm-openai/requirements.txt
+++ b/examples/ui/gradio/gradio-rag-milvus-vllm-openai/requirements.txt
@@ -45,7 +45,7 @@ jsonschema-specifications==2023.12.1; python_version >= '3.8'
 kiwisolver==1.4.5; python_version >= '3.7'
 langchain==0.1.9; python_version < '4.0' and python_full_version >= '3.8.1'
 langchain-community==0.0.24; python_version < '4.0' and python_full_version >= '3.8.1'
-langchain-core==0.1.27; python_version < '4.0' and python_full_version >= '3.8.1'
+langchain-core==0.1.53; python_version < '4.0' and python_full_version >= '3.8.1'
 langsmith==0.1.10; python_version < '4.0' and python_full_version >= '3.8.1'
 markdown-it-py==3.0.0; python_version >= '3.8'
 markupsafe==2.1.5; python_version >= '3.7'