diff --git a/README.md b/README.md
index 81a6bf71..742ab4a2 100644
--- a/README.md
+++ b/README.md
@@ -100,8 +100,8 @@ runner = STORMWikiRunner(engine_args, lm_configs, rm)
 ```
 
 Currently, our package support:
-- `OpenAIModel`, `AzureOpenAIModel`, `ClaudeModel`, `VLLMClient`, `TGIClient`, `TogetherClient`, `OllamaClient`, `GoogleModel` as language model components
-- `YouRM`, `BingSearch`, `VectorRM` as retrieval module components
+- `OpenAIModel`, `AzureOpenAIModel`, `ClaudeModel`, `VLLMClient`, `TGIClient`, `TogetherClient`, `OllamaClient`, `GoogleModel`, `DeepSeekModel` as language model components
+- `YouRM`, `BingSearch`, `VectorRM`, `SerperRM`, `BraveRM` as retrieval module components
 
 :star2: **PRs for integrating more language models into [knowledge_storm/lm.py](knowledge_storm/lm.py) and search engines/retrievers into [knowledge_storm/rm.py](knowledge_storm/rm.py) are highly appreciated!**
 
diff --git a/knowledge_storm/rm.py b/knowledge_storm/rm.py
index ce71d01b..4c438c47 100644
--- a/knowledge_storm/rm.py
+++ b/knowledge_storm/rm.py
@@ -3,7 +3,6 @@
 from typing import Callable, Union, List
 
 import dspy
-import pandas as pd
 import requests
 
 from langchain_huggingface import HuggingFaceEmbeddings
diff --git a/setup.py b/setup.py
index e4fa40c1..b7835ab7 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
 
 setup(
     name="knowledge-storm",
-    version="0.2.3",
+    version="0.2.4",
     author="Yijia Shao, Yucheng Jiang",
     author_email="shaoyj@stanford.edu, yuchengj@stanford.edu",
     description="STORM: A language model-powered knowledge curation engine.",